16721809

素因数分解:

${\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1\times {\mathrm{229}}^1$

素因数の和:420

約数の個数: 16

約数和(自身を含む): 18663120

約数和(自身を除く): 1941311

約数列:

[1, 13, 41, 137, 229, 533, 1781, 2977, 5617, 9389, 31373, 73021, 122057, 407849, 1286293, 16721809]

約数ペア:

[(1, 16721809), (13, 1286293), (41, 407849), (137, 122057), (229, 73021), (533, 31373), (1781, 9389), (2977, 5617)]