18645328

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{5273}}^1$

素因数の和:5311

約数の個数: 40

約数和(自身を含む): 41200488

約数和(自身を除く): 22555160

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 52, 68, 104, 136, 208, 221, 272, 442, 884, 1768, 3536, 5273, 10546, 21092, 42184, 68549, 84368, 89641, 137098, 179282, 274196, 358564, 548392, 717128, 1096784, 1165333, 1434256, 2330666, 4661332, 9322664, 18645328]

約数ペア:

[(1, 18645328), (2, 9322664), (4, 4661332), (8, 2330666), (13, 1434256), (16, 1165333), (17, 1096784), (26, 717128), (34, 548392), (52, 358564), (68, 274196), (104, 179282), (136, 137098), (208, 89641), (221, 84368), (272, 68549), (442, 42184), (884, 21092), (1768, 10546), (3536, 5273)]