216221005

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43201}}^1$

素因数の和:43237

約数の個数: 32

約数和(自身を含む): 348380928

約数和(自身を除く): 132159923

約数列:

[1, 5, 7, 11, 13, 35, 55, 65, 77, 91, 143, 385, 455, 715, 1001, 5005, 43201, 216005, 302407, 475211, 561613, 1512035, 2376055, 2808065, 3326477, 3931291, 6177743, 16632385, 19656455, 30888715, 43244201, 216221005]

約数ペア:

[(1, 216221005), (5, 43244201), (7, 30888715), (11, 19656455), (13, 16632385), (35, 6177743), (55, 3931291), (65, 3326477), (77, 2808065), (91, 2376055), (143, 1512035), (385, 561613), (455, 475211), (715, 302407), (1001, 216005), (5005, 43201)]