18819710

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{20681}}^1$

素因数の和:20708

約数の個数: 32

約数和(自身を含む): 41694912

約数和(自身を除く): 22875202

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 20681, 41362, 103405, 144767, 206810, 268853, 289534, 537706, 723835, 1344265, 1447670, 1881971, 2688530, 3763942, 9409855, 18819710]

約数ペア:

[(1, 18819710), (2, 9409855), (5, 3763942), (7, 2688530), (10, 1881971), (13, 1447670), (14, 1344265), (26, 723835), (35, 537706), (65, 289534), (70, 268853), (91, 206810), (130, 144767), (182, 103405), (455, 41362), (910, 20681)]