21664814

素因数分解:

$2^1\times {\mathrm{103}}^1\times {\mathrm{251}}^1\times {\mathrm{419}}^1$

素因数の和:775

約数の個数: 16

約数和(自身を含む): 33022080

約数和(自身を除く): 11357266

約数列:

[1, 2, 103, 206, 251, 419, 502, 838, 25853, 43157, 51706, 86314, 105169, 210338, 10832407, 21664814]

約数ペア:

[(1, 21664814), (2, 10832407), (103, 210338), (206, 105169), (251, 86314), (419, 51706), (502, 43157), (838, 25853)]