20561398

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{4229}}^1$

素因数の和:4272

約数の個数: 32

約数和(自身を含む): 38374560

約数和(自身を除く): 17813162

約数列:

[1, 2, 11, 13, 17, 22, 26, 34, 143, 187, 221, 286, 374, 442, 2431, 4229, 4862, 8458, 46519, 54977, 71893, 93038, 109954, 143786, 604747, 790823, 934609, 1209494, 1581646, 1869218, 10280699, 20561398]

約数ペア:

[(1, 20561398), (2, 10280699), (11, 1869218), (13, 1581646), (17, 1209494), (22, 934609), (26, 790823), (34, 604747), (143, 143786), (187, 109954), (221, 93038), (286, 71893), (374, 54977), (442, 46519), (2431, 8458), (4229, 4862)]