21114240

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{1571}}^1$

素因数の和:1600

約数の個数: 128

約数和(自身を含む): 76965120

約数和(自身を除く): 55850880

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, 64, 70, 80, 84, 96, 105, 112, 120, 128, 140, 160, 168, 192, 210, 224, 240, 280, 320, 336, 384, 420, 448, 480, 560, 640, 672, 840, 896, 960, 1120, 1344, 1571, 1680, 1920, 2240, 2688, 3142, 3360, 4480, 4713, 6284, 6720, 7855, 9426, 10997, 12568, 13440, 15710, 18852, 21994, 23565, 25136, 31420, 32991, 37704, 43988, 47130, 50272, 54985, 62840, 65982, 75408, 87976, 94260, 100544, 109970, 125680, 131964, 150816, 164955, 175952, 188520, 201088, 219940, 251360, 263928, 301632, 329910, 351904, 377040, 439880, 502720, 527856, 603264, 659820, 703808, 754080, 879760, 1005440, 1055712, 1319640, 1407616, 1508160, 1759520, 2111424, 2639280, 3016320, 3519040, 4222848, 5278560, 7038080, 10557120, 21114240]

約数ペア:

[(1, 21114240), (2, 10557120), (3, 7038080), (4, 5278560), (5, 4222848), (6, 3519040), (7, 3016320), (8, 2639280), (10, 2111424), (12, 1759520), (14, 1508160), (15, 1407616), (16, 1319640), (20, 1055712), (21, 1005440), (24, 879760), (28, 754080), (30, 703808), (32, 659820), (35, 603264), (40, 527856), (42, 502720), (48, 439880), (56, 377040), (60, 351904), (64, 329910), (70, 301632), (80, 263928), (84, 251360), (96, 219940), (105, 201088), (112, 188520), (120, 175952), (128, 164955), (140, 150816), (160, 131964), (168, 125680), (192, 109970), (210, 100544), (224, 94260), (240, 87976), (280, 75408), (320, 65982), (336, 62840), (384, 54985), (420, 50272), (448, 47130), (480, 43988), (560, 37704), (640, 32991), (672, 31420), (840, 25136), (896, 23565), (960, 21994), (1120, 18852), (1344, 15710), (1571, 13440), (1680, 12568), (1920, 10997), (2240, 9426), (2688, 7855), (3142, 6720), (3360, 6284), (4480, 4713)]