18390673

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1\times {\mathrm{461}}^1$

素因数の和:648

約数の個数: 16

約数和(自身を含む): 21732480

約数和(自身を除く): 3341807

約数列:

[1, 7, 41, 139, 287, 461, 973, 3227, 5699, 18901, 39893, 64079, 132307, 448553, 2627239, 18390673]

約数ペア:

[(1, 18390673), (7, 2627239), (41, 448553), (139, 132307), (287, 64079), (461, 39893), (973, 18901), (3227, 5699)]