21864016

素因数分解:

$2^4\times {\mathrm{103}}^1\times {\mathrm{13267}}^1$

素因数の和:13378

約数の個数: 20

約数和(自身を含む): 42776032

約数和(自身を除く): 20912016

約数列:

[1, 2, 4, 8, 16, 103, 206, 412, 824, 1648, 13267, 26534, 53068, 106136, 212272, 1366501, 2733002, 5466004, 10932008, 21864016]

約数ペア:

[(1, 21864016), (2, 10932008), (4, 5466004), (8, 2733002), (16, 1366501), (103, 212272), (206, 106136), (412, 53068), (824, 26534), (1648, 13267)]