18905705

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1123}}^1$

素因数の和:1185

約数の個数: 32

約数和(自身を含む): 28702464

約数和(自身を除く): 9796759

約数列:

[1, 5, 7, 13, 35, 37, 65, 91, 185, 259, 455, 481, 1123, 1295, 2405, 3367, 5615, 7861, 14599, 16835, 39305, 41551, 72995, 102193, 207755, 290857, 510965, 540163, 1454285, 2700815, 3781141, 18905705]

約数ペア:

[(1, 18905705), (5, 3781141), (7, 2700815), (13, 1454285), (35, 540163), (37, 510965), (65, 290857), (91, 207755), (185, 102193), (259, 72995), (455, 41551), (481, 39305), (1123, 16835), (1295, 14599), (2405, 7861), (3367, 5615)]