20782601

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{181}}^1\times {\mathrm{349}}^1$

素因数の和:584

約数の個数: 16

約数和(自身を含む): 24460800

約数和(自身を除く): 3678199

約数列:

[1, 7, 47, 181, 329, 349, 1267, 2443, 8507, 16403, 59549, 63169, 114821, 442183, 2968943, 20782601]

約数ペア:

[(1, 20782601), (7, 2968943), (47, 442183), (181, 114821), (329, 63169), (349, 59549), (1267, 16403), (2443, 8507)]