21349018

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{2311}}^1$

素因数の和:2493

約数の個数: 16

約数和(自身を含む): 33292800

約数和(自身を除く): 11943782

約数列:

[1, 2, 31, 62, 149, 298, 2311, 4619, 4622, 9238, 71641, 143282, 344339, 688678, 10674509, 21349018]

約数ペア:

[(1, 21349018), (2, 10674509), (31, 688678), (62, 344339), (149, 143282), (298, 71641), (2311, 9238), (4619, 4622)]