21377612

素因数分解:

$2^2\times {\mathrm{73}}^1\times {\mathrm{179}}^1\times {\mathrm{409}}^1$

素因数の和:665

約数の個数: 24

約数和(自身を含む): 38228400

約数和(自身を除く): 16850788

約数列:

[1, 2, 4, 73, 146, 179, 292, 358, 409, 716, 818, 1636, 13067, 26134, 29857, 52268, 59714, 73211, 119428, 146422, 292844, 5344403, 10688806, 21377612]

約数ペア:

[(1, 21377612), (2, 10688806), (4, 5344403), (73, 292844), (146, 146422), (179, 119428), (292, 73211), (358, 59714), (409, 52268), (716, 29857), (818, 26134), (1636, 13067)]