18901257

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{1487}}^1$

素因数の和:1732

約数の個数: 16

約数和(自身を含む): 26664960

約数和(自身を除く): 7763703

約数列:

[1, 3, 19, 57, 223, 669, 1487, 4237, 4461, 12711, 28253, 84759, 331601, 994803, 6300419, 18901257]

約数ペア:

[(1, 18901257), (3, 6300419), (19, 994803), (57, 331601), (223, 84759), (669, 28253), (1487, 12711), (4237, 4461)]