18836727

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{9857}}^1$

素因数の和:9887

約数の個数: 24

約数和(自身を含む): 31466736

約数和(自身を除く): 12630009

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 9857, 29571, 68999, 128141, 206997, 384423, 482993, 896987, 1448979, 2690961, 6278909, 18836727]

約数ペア:

[(1, 18836727), (3, 6278909), (7, 2690961), (13, 1448979), (21, 896987), (39, 482993), (49, 384423), (91, 206997), (147, 128141), (273, 68999), (637, 29571), (1911, 9857)]