20634872

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{2137}}^1$

素因数の和:2231

約数の個数: 32

約数和(自身を含む): 41562720

約数和(自身を除く): 20927848

約数列:

[1, 2, 4, 8, 17, 34, 68, 71, 136, 142, 284, 568, 1207, 2137, 2414, 4274, 4828, 8548, 9656, 17096, 36329, 72658, 145316, 151727, 290632, 303454, 606908, 1213816, 2579359, 5158718, 10317436, 20634872]

約数ペア:

[(1, 20634872), (2, 10317436), (4, 5158718), (8, 2579359), (17, 1213816), (34, 606908), (68, 303454), (71, 290632), (136, 151727), (142, 145316), (284, 72658), (568, 36329), (1207, 17096), (2137, 9656), (2414, 8548), (4274, 4828)]