21818421

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{967}}^1$

素因数の和:1105

約数の個数: 24

約数和(自身を含む): 33221760

約数和(自身を除く): 11403339

約数列:

[1, 3, 9, 23, 69, 109, 207, 327, 967, 981, 2507, 2901, 7521, 8703, 22241, 22563, 66723, 105403, 200169, 316209, 948627, 2424269, 7272807, 21818421]

約数ペア:

[(1, 21818421), (3, 7272807), (9, 2424269), (23, 948627), (69, 316209), (109, 200169), (207, 105403), (327, 66723), (967, 22563), (981, 22241), (2507, 8703), (2901, 7521)]