20696324

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{61}}^1\times {\mathrm{701}}^1$

素因数の和:788

約数の個数: 36

約数和(自身を含む): 40520844

約数和(自身を除く): 19824520

約数列:

[1, 2, 4, 11, 22, 44, 61, 121, 122, 242, 244, 484, 671, 701, 1342, 1402, 2684, 2804, 7381, 7711, 14762, 15422, 29524, 30844, 42761, 84821, 85522, 169642, 171044, 339284, 470371, 940742, 1881484, 5174081, 10348162, 20696324]

約数ペア:

[(1, 20696324), (2, 10348162), (4, 5174081), (11, 1881484), (22, 940742), (44, 470371), (61, 339284), (121, 171044), (122, 169642), (242, 85522), (244, 84821), (484, 42761), (671, 30844), (701, 29524), (1342, 15422), (1402, 14762), (2684, 7711), (2804, 7381)]