19991301

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{26339}}^1$

素因数の和:26376

約数の個数: 16

約数和(自身を含む): 30343680

約数和(自身を除く): 10352379

約数列:

[1, 3, 11, 23, 33, 69, 253, 759, 26339, 79017, 289729, 605797, 869187, 1817391, 6663767, 19991301]

約数ペア:

[(1, 19991301), (3, 6663767), (11, 1817391), (23, 869187), (33, 605797), (69, 289729), (253, 79017), (759, 26339)]