18821873

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{277}}^1\times {\mathrm{571}}^1$

素因数の和:872

約数の個数: 16

約数和(自身を含む): 22898304

約数和(自身を除く): 4076431

約数列:

[1, 7, 17, 119, 277, 571, 1939, 3997, 4709, 9707, 32963, 67949, 158167, 1107169, 2688839, 18821873]

約数ペア:

[(1, 18821873), (7, 2688839), (17, 1107169), (119, 158167), (277, 67949), (571, 32963), (1939, 9707), (3997, 4709)]