19641839

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{6421}}^1$

素因数の和:6470

約数の個数: 16

約数和(自身を含む): 24660480

約数和(自身を除く): 5018641

約数列:

[1, 7, 19, 23, 133, 161, 437, 3059, 6421, 44947, 121999, 147683, 853993, 1033781, 2805977, 19641839]

約数ペア:

[(1, 19641839), (7, 2805977), (19, 1033781), (23, 853993), (133, 147683), (161, 121999), (437, 44947), (3059, 6421)]