21040136

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{202309}}^1$

素因数の和:202328

約数の個数: 16

約数和(自身を含む): 42485100

約数和(自身を除く): 21444964

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 202309, 404618, 809236, 1618472, 2630017, 5260034, 10520068, 21040136]

約数ペア:

[(1, 21040136), (2, 10520068), (4, 5260034), (8, 2630017), (13, 1618472), (26, 809236), (52, 404618), (104, 202309)]