21557100

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{181}}^1\times {\mathrm{397}}^1$

素因数の和:595

約数の個数: 72

約数和(自身を含む): 62874448

約数和(自身を除く): 41317348

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 150, 181, 300, 362, 397, 543, 724, 794, 905, 1086, 1191, 1588, 1810, 1985, 2172, 2382, 2715, 3620, 3970, 4525, 4764, 5430, 5955, 7940, 9050, 9925, 10860, 11910, 13575, 18100, 19850, 23820, 27150, 29775, 39700, 54300, 59550, 71857, 119100, 143714, 215571, 287428, 359285, 431142, 718570, 862284, 1077855, 1437140, 1796425, 2155710, 3592850, 4311420, 5389275, 7185700, 10778550, 21557100]

約数ペア:

[(1, 21557100), (2, 10778550), (3, 7185700), (4, 5389275), (5, 4311420), (6, 3592850), (10, 2155710), (12, 1796425), (15, 1437140), (20, 1077855), (25, 862284), (30, 718570), (50, 431142), (60, 359285), (75, 287428), (100, 215571), (150, 143714), (181, 119100), (300, 71857), (362, 59550), (397, 54300), (543, 39700), (724, 29775), (794, 27150), (905, 23820), (1086, 19850), (1191, 18100), (1588, 13575), (1810, 11910), (1985, 10860), (2172, 9925), (2382, 9050), (2715, 7940), (3620, 5955), (3970, 5430), (4525, 4764)]