20799918

素因数分解:

$2^1\times 3^2\times {\mathrm{131}}^1\times {\mathrm{8821}}^1$

素因数の和:8960

約数の個数: 24

約数和(自身を含む): 45415656

約数和(自身を除く): 24615738

約数列:

[1, 2, 3, 6, 9, 18, 131, 262, 393, 786, 1179, 2358, 8821, 17642, 26463, 52926, 79389, 158778, 1155551, 2311102, 3466653, 6933306, 10399959, 20799918]

約数ペア:

[(1, 20799918), (2, 10399959), (3, 6933306), (6, 3466653), (9, 2311102), (18, 1155551), (131, 158778), (262, 79389), (393, 52926), (786, 26463), (1179, 17642), (2358, 8821)]