17951995

素因数分解:

$5^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{829}}^1$

素因数の和:966

約数の個数: 16

約数和(自身を含む): 22230720

約数和(自身を除く): 4278725

約数列:

[1, 5, 61, 71, 305, 355, 829, 4145, 4331, 21655, 50569, 58859, 252845, 294295, 3590399, 17951995]

約数ペア:

[(1, 17951995), (5, 3590399), (61, 294295), (71, 252845), (305, 58859), (355, 50569), (829, 21655), (4145, 4331)]