21167708575

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{83609}}^1$

素因数の和:83692

約数の個数: 48

約数和(自身を含む): 30480861600

約数和(自身を除く): 9313153025

約数列:

[1, 5, 13, 19, 25, 41, 65, 95, 205, 247, 325, 475, 533, 779, 1025, 1235, 2665, 3895, 6175, 10127, 13325, 19475, 50635, 83609, 253175, 418045, 1086917, 1588571, 2090225, 3427969, 5434585, 7942855, 17139845, 20651423, 27172925, 39714275, 44563597, 65131411, 85699225, 103257115, 222817985, 325657055, 516285575, 846708343, 1114089925, 1628285275, 4233541715, 21167708575]

約数ペア:

[(1, 21167708575), (5, 4233541715), (13, 1628285275), (19, 1114089925), (25, 846708343), (41, 516285575), (65, 325657055), (95, 222817985), (205, 103257115), (247, 85699225), (325, 65131411), (475, 44563597), (533, 39714275), (779, 27172925), (1025, 20651423), (1235, 17139845), (2665, 7942855), (3895, 5434585), (6175, 3427969), (10127, 2090225), (13325, 1588571), (19475, 1086917), (50635, 418045), (83609, 253175)]