21829920

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1$

素因数の和:187

約数の個数: 192

約数和(自身を含む): 80559360

約数和(自身を除く): 58729440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 70, 73, 80, 84, 89, 96, 105, 112, 120, 140, 146, 160, 168, 178, 210, 219, 224, 240, 267, 280, 292, 336, 356, 365, 420, 438, 445, 480, 511, 534, 560, 584, 623, 672, 712, 730, 840, 876, 890, 1022, 1068, 1095, 1120, 1168, 1246, 1335, 1424, 1460, 1533, 1680, 1752, 1780, 1869, 2044, 2136, 2190, 2336, 2492, 2555, 2670, 2848, 2920, 3066, 3115, 3360, 3504, 3560, 3738, 4088, 4272, 4380, 4984, 5110, 5340, 5840, 6132, 6230, 6497, 7008, 7120, 7476, 7665, 8176, 8544, 8760, 9345, 9968, 10220, 10680, 11680, 12264, 12460, 12994, 14240, 14952, 15330, 16352, 17520, 18690, 19491, 19936, 20440, 21360, 24528, 24920, 25988, 29904, 30660, 32485, 35040, 37380, 38982, 40880, 42720, 45479, 49056, 49840, 51976, 59808, 61320, 64970, 74760, 77964, 81760, 90958, 97455, 99680, 103952, 122640, 129940, 136437, 149520, 155928, 181916, 194910, 207904, 227395, 245280, 259880, 272874, 299040, 311856, 363832, 389820, 454790, 519760, 545748, 623712, 682185, 727664, 779640, 909580, 1039520, 1091496, 1364370, 1455328, 1559280, 1819160, 2182992, 2728740, 3118560, 3638320, 4365984, 5457480, 7276640, 10914960, 21829920]

約数ペア:

[(1, 21829920), (2, 10914960), (3, 7276640), (4, 5457480), (5, 4365984), (6, 3638320), (7, 3118560), (8, 2728740), (10, 2182992), (12, 1819160), (14, 1559280), (15, 1455328), (16, 1364370), (20, 1091496), (21, 1039520), (24, 909580), (28, 779640), (30, 727664), (32, 682185), (35, 623712), (40, 545748), (42, 519760), (48, 454790), (56, 389820), (60, 363832), (70, 311856), (73, 299040), (80, 272874), (84, 259880), (89, 245280), (96, 227395), (105, 207904), (112, 194910), (120, 181916), (140, 155928), (146, 149520), (160, 136437), (168, 129940), (178, 122640), (210, 103952), (219, 99680), (224, 97455), (240, 90958), (267, 81760), (280, 77964), (292, 74760), (336, 64970), (356, 61320), (365, 59808), (420, 51976), (438, 49840), (445, 49056), (480, 45479), (511, 42720), (534, 40880), (560, 38982), (584, 37380), (623, 35040), (672, 32485), (712, 30660), (730, 29904), (840, 25988), (876, 24920), (890, 24528), (1022, 21360), (1068, 20440), (1095, 19936), (1120, 19491), (1168, 18690), (1246, 17520), (1335, 16352), (1424, 15330), (1460, 14952), (1533, 14240), (1680, 12994), (1752, 12460), (1780, 12264), (1869, 11680), (2044, 10680), (2136, 10220), (2190, 9968), (2336, 9345), (2492, 8760), (2555, 8544), (2670, 8176), (2848, 7665), (2920, 7476), (3066, 7120), (3115, 7008), (3360, 6497), (3504, 6230), (3560, 6132), (3738, 5840), (4088, 5340), (4272, 5110), (4380, 4984)]