21378870

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{79181}}^1$

素因数の和:79197

約数の個数: 32

約数和(自身を含む): 57011040

約数和(自身を除く): 35632170

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 270, 79181, 158362, 237543, 395905, 475086, 712629, 791810, 1187715, 1425258, 2137887, 2375430, 3563145, 4275774, 7126290, 10689435, 21378870]

約数ペア:

[(1, 21378870), (2, 10689435), (3, 7126290), (5, 4275774), (6, 3563145), (9, 2375430), (10, 2137887), (15, 1425258), (18, 1187715), (27, 791810), (30, 712629), (45, 475086), (54, 395905), (90, 237543), (135, 158362), (270, 79181)]