21927308

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{409}}^1\times {\mathrm{1031}}^1$

素因数の和:1457

約数の個数: 24

約数和(自身を含む): 41465760

約数和(自身を除く): 19538452

約数列:

[1, 2, 4, 13, 26, 52, 409, 818, 1031, 1636, 2062, 4124, 5317, 10634, 13403, 21268, 26806, 53612, 421679, 843358, 1686716, 5481827, 10963654, 21927308]

約数ペア:

[(1, 21927308), (2, 10963654), (4, 5481827), (13, 1686716), (26, 843358), (52, 421679), (409, 53612), (818, 26806), (1031, 21268), (1636, 13403), (2062, 10634), (4124, 5317)]