18690412

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{21143}}^1$

素因数の和:21177

約数の個数: 24

約数和(自身を含む): 37298016

約数和(自身を除く): 18607604

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 221, 442, 884, 21143, 42286, 84572, 274859, 359431, 549718, 718862, 1099436, 1437724, 4672603, 9345206, 18690412]

約数ペア:

[(1, 18690412), (2, 9345206), (4, 4672603), (13, 1437724), (17, 1099436), (26, 718862), (34, 549718), (52, 359431), (68, 274859), (221, 84572), (442, 42286), (884, 21143)]