21131100

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{53}}^1\times {\mathrm{443}}^1$

素因数の和:516

約数の個数: 108

約数和(自身を含む): 67636296

約数和(自身を除く): 46505196

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 53, 60, 75, 90, 100, 106, 150, 159, 180, 212, 225, 265, 300, 318, 443, 450, 477, 530, 636, 795, 886, 900, 954, 1060, 1325, 1329, 1590, 1772, 1908, 2215, 2385, 2650, 2658, 3180, 3975, 3987, 4430, 4770, 5300, 5316, 6645, 7950, 7974, 8860, 9540, 11075, 11925, 13290, 15900, 15948, 19935, 22150, 23479, 23850, 26580, 33225, 39870, 44300, 46958, 47700, 66450, 70437, 79740, 93916, 99675, 117395, 132900, 140874, 199350, 211311, 234790, 281748, 352185, 398700, 422622, 469580, 586975, 704370, 845244, 1056555, 1173950, 1408740, 1760925, 2113110, 2347900, 3521850, 4226220, 5282775, 7043700, 10565550, 21131100]

約数ペア:

[(1, 21131100), (2, 10565550), (3, 7043700), (4, 5282775), (5, 4226220), (6, 3521850), (9, 2347900), (10, 2113110), (12, 1760925), (15, 1408740), (18, 1173950), (20, 1056555), (25, 845244), (30, 704370), (36, 586975), (45, 469580), (50, 422622), (53, 398700), (60, 352185), (75, 281748), (90, 234790), (100, 211311), (106, 199350), (150, 140874), (159, 132900), (180, 117395), (212, 99675), (225, 93916), (265, 79740), (300, 70437), (318, 66450), (443, 47700), (450, 46958), (477, 44300), (530, 39870), (636, 33225), (795, 26580), (886, 23850), (900, 23479), (954, 22150), (1060, 19935), (1325, 15948), (1329, 15900), (1590, 13290), (1772, 11925), (1908, 11075), (2215, 9540), (2385, 8860), (2650, 7974), (2658, 7950), (3180, 6645), (3975, 5316), (3987, 5300), (4430, 4770)]