18958875

素因数分解:

$3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{3889}}^1$

素因数の和:3920

約数の個数: 32

約数和(自身を含む): 33983040

約数和(自身を除く): 15024165

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 125, 195, 325, 375, 975, 1625, 3889, 4875, 11667, 19445, 50557, 58335, 97225, 151671, 252785, 291675, 486125, 758355, 1263925, 1458375, 3791775, 6319625, 18958875]

約数ペア:

[(1, 18958875), (3, 6319625), (5, 3791775), (13, 1458375), (15, 1263925), (25, 758355), (39, 486125), (65, 291675), (75, 252785), (125, 151671), (195, 97225), (325, 58335), (375, 50557), (975, 19445), (1625, 11667), (3889, 4875)]