20709910

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{9371}}^1$

素因数の和:9408

約数の個数: 32

約数和(自身を含む): 42511392

約数和(自身を除く): 21801482

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 170, 221, 442, 1105, 2210, 9371, 18742, 46855, 93710, 121823, 159307, 243646, 318614, 609115, 796535, 1218230, 1593070, 2070991, 4141982, 10354955, 20709910]

約数ペア:

[(1, 20709910), (2, 10354955), (5, 4141982), (10, 2070991), (13, 1593070), (17, 1218230), (26, 796535), (34, 609115), (65, 318614), (85, 243646), (130, 159307), (170, 121823), (221, 93710), (442, 46855), (1105, 18742), (2210, 9371)]