21253738

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{677}}^1\times {\mathrm{1427}}^1$

素因数の和:2117

約数の個数: 16

約数和(自身を含む): 34854624

約数和(自身を除く): 13600886

約数列:

[1, 2, 11, 22, 677, 1354, 1427, 2854, 7447, 14894, 15697, 31394, 966079, 1932158, 10626869, 21253738]

約数ペア:

[(1, 21253738), (2, 10626869), (11, 1932158), (22, 966079), (677, 31394), (1354, 15697), (1427, 14894), (2854, 7447)]