21632728

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{2633}}^1$

素因数の和:2731

約数の個数: 32

約数和(自身を含む): 44251200

約数和(自身を除く): 22618472

約数列:

[1, 2, 4, 8, 13, 26, 52, 79, 104, 158, 316, 632, 1027, 2054, 2633, 4108, 5266, 8216, 10532, 21064, 34229, 68458, 136916, 208007, 273832, 416014, 832028, 1664056, 2704091, 5408182, 10816364, 21632728]

約数ペア:

[(1, 21632728), (2, 10816364), (4, 5408182), (8, 2704091), (13, 1664056), (26, 832028), (52, 416014), (79, 273832), (104, 208007), (158, 136916), (316, 68458), (632, 34229), (1027, 21064), (2054, 10532), (2633, 8216), (4108, 5266)]