21318900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{179}}^1\times {\mathrm{397}}^1$

素因数の和:593

約数の個数: 72

約数和(自身を含む): 62183520

約数和(自身を除く): 40864620

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 150, 179, 300, 358, 397, 537, 716, 794, 895, 1074, 1191, 1588, 1790, 1985, 2148, 2382, 2685, 3580, 3970, 4475, 4764, 5370, 5955, 7940, 8950, 9925, 10740, 11910, 13425, 17900, 19850, 23820, 26850, 29775, 39700, 53700, 59550, 71063, 119100, 142126, 213189, 284252, 355315, 426378, 710630, 852756, 1065945, 1421260, 1776575, 2131890, 3553150, 4263780, 5329725, 7106300, 10659450, 21318900]

約数ペア:

[(1, 21318900), (2, 10659450), (3, 7106300), (4, 5329725), (5, 4263780), (6, 3553150), (10, 2131890), (12, 1776575), (15, 1421260), (20, 1065945), (25, 852756), (30, 710630), (50, 426378), (60, 355315), (75, 284252), (100, 213189), (150, 142126), (179, 119100), (300, 71063), (358, 59550), (397, 53700), (537, 39700), (716, 29775), (794, 26850), (895, 23820), (1074, 19850), (1191, 17900), (1588, 13425), (1790, 11910), (1985, 10740), (2148, 9925), (2382, 8950), (2685, 7940), (3580, 5955), (3970, 5370), (4475, 4764)]