2221615

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1303}}^1$

素因数の和:1350

約数の個数: 16

約数和(自身を含む): 3004416

約数和(自身を除く): 782801

約数列:

[1, 5, 11, 31, 55, 155, 341, 1303, 1705, 6515, 14333, 40393, 71665, 201965, 444323, 2221615]

約数ペア:

[(1, 2221615), (5, 444323), (11, 201965), (31, 71665), (55, 40393), (155, 14333), (341, 6515), (1303, 1705)]