20878254

素因数分解:

$2^1\times 3^2\times {\mathrm{317}}^1\times {\mathrm{3659}}^1$

素因数の和:3984

約数の個数: 24

約数和(自身を含む): 45391320

約数和(自身を除く): 24513066

約数列:

[1, 2, 3, 6, 9, 18, 317, 634, 951, 1902, 2853, 3659, 5706, 7318, 10977, 21954, 32931, 65862, 1159903, 2319806, 3479709, 6959418, 10439127, 20878254]

約数ペア:

[(1, 20878254), (2, 10439127), (3, 6959418), (6, 3479709), (9, 2319806), (18, 1159903), (317, 65862), (634, 32931), (951, 21954), (1902, 10977), (2853, 7318), (3659, 5706)]