21558251

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{3677}}^1$

素因数の和:3742

約数の個数: 16

約数和(自身を含む): 25951968

約数和(自身を除く): 4393717

約数列:

[1, 11, 13, 41, 143, 451, 533, 3677, 5863, 40447, 47801, 150757, 525811, 1658327, 1959841, 21558251]

約数ペア:

[(1, 21558251), (11, 1959841), (13, 1658327), (41, 525811), (143, 150757), (451, 47801), (533, 40447), (3677, 5863)]