640838646

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{5086021}}^1$

素因数の和:5086036

約数の個数: 24

約数和(自身を含む): 1586838864

約数和(自身を除く): 946000218

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 5086021, 10172042, 15258063, 30516126, 35602147, 45774189, 71204294, 91548378, 106806441, 213612882, 320419323, 640838646]

約数ペア:

[(1, 640838646), (2, 320419323), (3, 213612882), (6, 106806441), (7, 91548378), (9, 71204294), (14, 45774189), (18, 35602147), (21, 30516126), (42, 15258063), (63, 10172042), (126, 5086021)]