20953384

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{3583}}^1$

素因数の和:3649

約数の個数: 32

約数和(自身を含む): 42577920

約数和(自身を除く): 21624536

約数列:

[1, 2, 4, 8, 17, 34, 43, 68, 86, 136, 172, 344, 731, 1462, 2924, 3583, 5848, 7166, 14332, 28664, 60911, 121822, 154069, 243644, 308138, 487288, 616276, 1232552, 2619173, 5238346, 10476692, 20953384]

約数ペア:

[(1, 20953384), (2, 10476692), (4, 5238346), (8, 2619173), (17, 1232552), (34, 616276), (43, 487288), (68, 308138), (86, 243644), (136, 154069), (172, 121822), (344, 60911), (731, 28664), (1462, 14332), (2924, 7166), (3583, 5848)]