17749208421

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{3968077}}^1$

素因数の和:3968161

約数の個数: 24

約数和(自身を含む): 29712968064

約数和(自身を除く): 11963759643

約数列:

[1, 3, 7, 9, 21, 63, 71, 213, 497, 639, 1491, 4473, 3968077, 11904231, 27776539, 35712693, 83329617, 249988851, 281733467, 845200401, 1972134269, 2535601203, 5916402807, 17749208421]

約数ペア:

[(1, 17749208421), (3, 5916402807), (7, 2535601203), (9, 1972134269), (21, 845200401), (63, 281733467), (71, 249988851), (213, 83329617), (497, 35712693), (639, 27776539), (1491, 11904231), (4473, 3968077)]