20215858

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{641}}^1\times {\mathrm{1213}}^1$

素因数の和:1869

約数の個数: 16

約数和(自身を含む): 32734296

約数和(自身を除く): 12518438

約数列:

[1, 2, 13, 26, 641, 1213, 1282, 2426, 8333, 15769, 16666, 31538, 777533, 1555066, 10107929, 20215858]

約数ペア:

[(1, 20215858), (2, 10107929), (13, 1555066), (26, 777533), (641, 31538), (1213, 16666), (1282, 15769), (2426, 8333)]