21319746

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{4657}}^1$

素因数の和:4778

約数の個数: 32

約数和(自身を含む): 49188480

約数和(自身を除く): 27868734

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 109, 218, 327, 654, 763, 1526, 2289, 4578, 4657, 9314, 13971, 27942, 32599, 65198, 97797, 195594, 507613, 1015226, 1522839, 3045678, 3553291, 7106582, 10659873, 21319746]

約数ペア:

[(1, 21319746), (2, 10659873), (3, 7106582), (6, 3553291), (7, 3045678), (14, 1522839), (21, 1015226), (42, 507613), (109, 195594), (218, 97797), (327, 65198), (654, 32599), (763, 27942), (1526, 13971), (2289, 9314), (4578, 4657)]