21560655

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1\times {\mathrm{233}}^1$

素因数の和:471

約数の個数: 32

約数和(自身を含む): 35942400

約数和(自身を除く): 14381745

約数列:

[1, 3, 5, 15, 31, 93, 155, 199, 233, 465, 597, 699, 995, 1165, 2985, 3495, 6169, 7223, 18507, 21669, 30845, 36115, 46367, 92535, 108345, 139101, 231835, 695505, 1437377, 4312131, 7186885, 21560655]

約数ペア:

[(1, 21560655), (3, 7186885), (5, 4312131), (15, 1437377), (31, 695505), (93, 231835), (155, 139101), (199, 108345), (233, 92535), (465, 46367), (597, 36115), (699, 30845), (995, 21669), (1165, 18507), (2985, 7223), (3495, 6169)]