21817320

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1367}}^1$

素因数の和:1407

約数の個数: 128

約数和(自身を含む): 78796800

約数和(自身を除く): 56979480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 19, 20, 21, 24, 28, 30, 35, 38, 40, 42, 56, 57, 60, 70, 76, 84, 95, 105, 114, 120, 133, 140, 152, 168, 190, 210, 228, 266, 280, 285, 380, 399, 420, 456, 532, 570, 665, 760, 798, 840, 1064, 1140, 1330, 1367, 1596, 1995, 2280, 2660, 2734, 3192, 3990, 4101, 5320, 5468, 6835, 7980, 8202, 9569, 10936, 13670, 15960, 16404, 19138, 20505, 25973, 27340, 28707, 32808, 38276, 41010, 47845, 51946, 54680, 57414, 76552, 77919, 82020, 95690, 103892, 114828, 129865, 143535, 155838, 164040, 181811, 191380, 207784, 229656, 259730, 287070, 311676, 363622, 382760, 389595, 519460, 545433, 574140, 623352, 727244, 779190, 909055, 1038920, 1090866, 1148280, 1454488, 1558380, 1818110, 2181732, 2727165, 3116760, 3636220, 4363464, 5454330, 7272440, 10908660, 21817320]

約数ペア:

[(1, 21817320), (2, 10908660), (3, 7272440), (4, 5454330), (5, 4363464), (6, 3636220), (7, 3116760), (8, 2727165), (10, 2181732), (12, 1818110), (14, 1558380), (15, 1454488), (19, 1148280), (20, 1090866), (21, 1038920), (24, 909055), (28, 779190), (30, 727244), (35, 623352), (38, 574140), (40, 545433), (42, 519460), (56, 389595), (57, 382760), (60, 363622), (70, 311676), (76, 287070), (84, 259730), (95, 229656), (105, 207784), (114, 191380), (120, 181811), (133, 164040), (140, 155838), (152, 143535), (168, 129865), (190, 114828), (210, 103892), (228, 95690), (266, 82020), (280, 77919), (285, 76552), (380, 57414), (399, 54680), (420, 51946), (456, 47845), (532, 41010), (570, 38276), (665, 32808), (760, 28707), (798, 27340), (840, 25973), (1064, 20505), (1140, 19138), (1330, 16404), (1367, 15960), (1596, 13670), (1995, 10936), (2280, 9569), (2660, 8202), (2734, 7980), (3192, 6835), (3990, 5468), (4101, 5320)]