20340978

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{1609}}^1$

素因数の和:1671

約数の個数: 48

約数和(自身を含む): 48454560

約数和(自身を除く): 28113582

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 43, 49, 86, 98, 129, 147, 258, 294, 301, 602, 903, 1609, 1806, 2107, 3218, 4214, 4827, 6321, 9654, 11263, 12642, 22526, 33789, 67578, 69187, 78841, 138374, 157682, 207561, 236523, 415122, 473046, 484309, 968618, 1452927, 2905854, 3390163, 6780326, 10170489, 20340978]

約数ペア:

[(1, 20340978), (2, 10170489), (3, 6780326), (6, 3390163), (7, 2905854), (14, 1452927), (21, 968618), (42, 484309), (43, 473046), (49, 415122), (86, 236523), (98, 207561), (129, 157682), (147, 138374), (258, 78841), (294, 69187), (301, 67578), (602, 33789), (903, 22526), (1609, 12642), (1806, 11263), (2107, 9654), (3218, 6321), (4214, 4827)]