21009742

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{1019}}^1$

素因数の和:1108

約数の個数: 24

約数和(自身を含む): 34718760

約数和(自身を除く): 13709018

約数列:

[1, 2, 13, 26, 61, 122, 169, 338, 793, 1019, 1586, 2038, 10309, 13247, 20618, 26494, 62159, 124318, 172211, 344422, 808067, 1616134, 10504871, 21009742]

約数ペア:

[(1, 21009742), (2, 10504871), (13, 1616134), (26, 808067), (61, 344422), (122, 172211), (169, 124318), (338, 62159), (793, 26494), (1019, 20618), (1586, 13247), (2038, 10309)]