21746751

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{59}}^1\times {\mathrm{727}}^1$

素因数の和:815

約数の個数: 24

約数和(自身を含む): 31973760

約数和(自身を除く): 10227009

約数列:

[1, 3, 13, 39, 59, 169, 177, 507, 727, 767, 2181, 2301, 9451, 9971, 28353, 29913, 42893, 122863, 128679, 368589, 557609, 1672827, 7248917, 21746751]

約数ペア:

[(1, 21746751), (3, 7248917), (13, 1672827), (39, 557609), (59, 368589), (169, 128679), (177, 122863), (507, 42893), (727, 29913), (767, 28353), (2181, 9971), (2301, 9451)]