72405291

素因数分解:

$3^1\times 7^2\times {\mathrm{449}}^1\times {\mathrm{1097}}^1$

素因数の和:1563

約数の個数: 24

約数和(自身を含む): 112654800

約数和(自身を除く): 40249509

約数列:

[1, 3, 7, 21, 49, 147, 449, 1097, 1347, 3143, 3291, 7679, 9429, 22001, 23037, 53753, 66003, 161259, 492553, 1477659, 3447871, 10343613, 24135097, 72405291]

約数ペア:

[(1, 72405291), (3, 24135097), (7, 10343613), (21, 3447871), (49, 1477659), (147, 492553), (449, 161259), (1097, 66003), (1347, 53753), (3143, 23037), (3291, 22001), (7679, 9429)]