18121125

素因数分解:

$3^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{191}}^1$

素因数の和:243

約数の個数: 64

約数和(自身を含む): 34504704

約数和(自身を除く): 16383579

約数列:

[1, 3, 5, 11, 15, 23, 25, 33, 55, 69, 75, 115, 125, 165, 191, 253, 275, 345, 375, 573, 575, 759, 825, 955, 1265, 1375, 1725, 2101, 2865, 2875, 3795, 4125, 4393, 4775, 6303, 6325, 8625, 10505, 13179, 14325, 18975, 21965, 23875, 31515, 31625, 48323, 52525, 65895, 71625, 94875, 109825, 144969, 157575, 241615, 262625, 329475, 549125, 724845, 787875, 1208075, 1647375, 3624225, 6040375, 18121125]

約数ペア:

[(1, 18121125), (3, 6040375), (5, 3624225), (11, 1647375), (15, 1208075), (23, 787875), (25, 724845), (33, 549125), (55, 329475), (69, 262625), (75, 241615), (115, 157575), (125, 144969), (165, 109825), (191, 94875), (253, 71625), (275, 65895), (345, 52525), (375, 48323), (573, 31625), (575, 31515), (759, 23875), (825, 21965), (955, 18975), (1265, 14325), (1375, 13179), (1725, 10505), (2101, 8625), (2865, 6325), (2875, 6303), (3795, 4775), (4125, 4393)]