21356768238

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{273804721}}^1$

素因数の和:273804739

約数の個数: 16

約数和(自身を含む): 45999193296

約数和(自身を除く): 24642425058

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 273804721, 547609442, 821414163, 1642828326, 3559461373, 7118922746, 10678384119, 21356768238]

約数ペア:

[(1, 21356768238), (2, 10678384119), (3, 7118922746), (6, 3559461373), (13, 1642828326), (26, 821414163), (39, 547609442), (78, 273804721)]