21107866

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{19801}}^1$

素因数の和:19857

約数の個数: 16

約数和(自身を含む): 34930728

約数和(自身を除く): 13822862

約数列:

[1, 2, 13, 26, 41, 82, 533, 1066, 19801, 39602, 257413, 514826, 811841, 1623682, 10553933, 21107866]

約数ペア:

[(1, 21107866), (2, 10553933), (13, 1623682), (26, 811841), (41, 514826), (82, 257413), (533, 39602), (1066, 19801)]