21658988

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{10159}}^1$

素因数の和:10217

約数の個数: 24

約数和(自身を含む): 41818560

約数和(自身を除く): 20159572

約数列:

[1, 2, 4, 13, 26, 41, 52, 82, 164, 533, 1066, 2132, 10159, 20318, 40636, 132067, 264134, 416519, 528268, 833038, 1666076, 5414747, 10829494, 21658988]

約数ペア:

[(1, 21658988), (2, 10829494), (4, 5414747), (13, 1666076), (26, 833038), (41, 528268), (52, 416519), (82, 264134), (164, 132067), (533, 40636), (1066, 20318), (2132, 10159)]