663806

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{211}}^1$

素因数の和:248

約数の個数: 24

約数和(自身を含む): 1184232

約数和(自身を除く): 520426

約数列:

[1, 2, 11, 13, 22, 26, 121, 143, 211, 242, 286, 422, 1573, 2321, 2743, 3146, 4642, 5486, 25531, 30173, 51062, 60346, 331903, 663806]

約数ペア:

[(1, 663806), (2, 331903), (11, 60346), (13, 51062), (22, 30173), (26, 25531), (121, 5486), (143, 4642), (211, 3146), (242, 2743), (286, 2321), (422, 1573)]