21356406

素因数分解:

$2^1\times 3^3\times {\mathrm{131}}^1\times {\mathrm{3019}}^1$

素因数の和:3161

約数の個数: 32

約数和(自身を含む): 47836800

約数和(自身を除く): 26480394

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 131, 262, 393, 786, 1179, 2358, 3019, 3537, 6038, 7074, 9057, 18114, 27171, 54342, 81513, 163026, 395489, 790978, 1186467, 2372934, 3559401, 7118802, 10678203, 21356406]

約数ペア:

[(1, 21356406), (2, 10678203), (3, 7118802), (6, 3559401), (9, 2372934), (18, 1186467), (27, 790978), (54, 395489), (131, 163026), (262, 81513), (393, 54342), (786, 27171), (1179, 18114), (2358, 9057), (3019, 7074), (3537, 6038)]