21358026

素因数分解:

$2^1\times 3^3\times {\mathrm{137}}^1\times {\mathrm{2887}}^1$

素因数の和:3035

約数の個数: 32

約数和(自身を含む): 47825280

約数和(自身を除く): 26467254

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 137, 274, 411, 822, 1233, 2466, 2887, 3699, 5774, 7398, 8661, 17322, 25983, 51966, 77949, 155898, 395519, 791038, 1186557, 2373114, 3559671, 7119342, 10679013, 21358026]

約数ペア:

[(1, 21358026), (2, 10679013), (3, 7119342), (6, 3559671), (9, 2373114), (18, 1186557), (27, 791038), (54, 395519), (137, 155898), (274, 77949), (411, 51966), (822, 25983), (1233, 17322), (2466, 8661), (2887, 7398), (3699, 5774)]