21474375

素因数分解:

$3^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{881}}^1$

素因数の和:917

約数の個数: 40

約数和(自身を含む): 38575152

約数和(自身を除く): 17100777

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 125, 195, 325, 375, 625, 881, 975, 1625, 1875, 2643, 4405, 4875, 8125, 11453, 13215, 22025, 24375, 34359, 57265, 66075, 110125, 171795, 286325, 330375, 550625, 858975, 1431625, 1651875, 4294875, 7158125, 21474375]

約数ペア:

[(1, 21474375), (3, 7158125), (5, 4294875), (13, 1651875), (15, 1431625), (25, 858975), (39, 550625), (65, 330375), (75, 286325), (125, 171795), (195, 110125), (325, 66075), (375, 57265), (625, 34359), (881, 24375), (975, 22025), (1625, 13215), (1875, 11453), (2643, 8125), (4405, 4875)]