19938581

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{907}}^1$

素因数の和:1028

約数の個数: 16

約数和(自身を含む): 22881600

約数和(自身を除く): 2943019

約数列:

[1, 13, 19, 89, 247, 907, 1157, 1691, 11791, 17233, 21983, 80723, 224029, 1049399, 1533737, 19938581]

約数ペア:

[(1, 19938581), (13, 1533737), (19, 1049399), (89, 224029), (247, 80723), (907, 21983), (1157, 17233), (1691, 11791)]