31980884

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{47309}}^1$

素因数の和:47339

約数の個数: 18

約数和(自身を含む): 60604110

約数和(自身を除く): 28623226

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 47309, 94618, 189236, 615017, 1230034, 2460068, 7995221, 15990442, 31980884]

約数ペア:

[(1, 31980884), (2, 15990442), (4, 7995221), (13, 2460068), (26, 1230034), (52, 615017), (169, 189236), (338, 94618), (676, 47309)]