640828497

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{317}}^1\times {\mathrm{21737}}^1$

素因数の和:22088

約数の個数: 16

約数和(自身を含む): 884823552

約数和(自身を除く): 243995055

約数列:

[1, 3, 31, 93, 317, 951, 9827, 21737, 29481, 65211, 673847, 2021541, 6890629, 20671887, 213609499, 640828497]

約数ペア:

[(1, 640828497), (3, 213609499), (31, 20671887), (93, 6890629), (317, 2021541), (951, 673847), (9827, 65211), (21737, 29481)]