20490639

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{3037}}^1$

素因数の和:3226

約数の個数: 16

約数和(自身を含む): 29602272

約数和(自身を除く): 9111633

約数列:

[1, 3, 13, 39, 173, 519, 2249, 3037, 6747, 9111, 39481, 118443, 525401, 1576203, 6830213, 20490639]

約数ペア:

[(1, 20490639), (3, 6830213), (13, 1576203), (39, 525401), (173, 118443), (519, 39481), (2249, 9111), (3037, 6747)]