19721268

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{78259}}^1$

素因数の和:78276

約数の個数: 36

約数和(自身を含む): 56973280

約数和(自身を除く): 37252012

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 78259, 156518, 234777, 313036, 469554, 547813, 704331, 939108, 1095626, 1408662, 1643439, 2191252, 2817324, 3286878, 4930317, 6573756, 9860634, 19721268]

約数ペア:

[(1, 19721268), (2, 9860634), (3, 6573756), (4, 4930317), (6, 3286878), (7, 2817324), (9, 2191252), (12, 1643439), (14, 1408662), (18, 1095626), (21, 939108), (28, 704331), (36, 547813), (42, 469554), (63, 313036), (84, 234777), (126, 156518), (252, 78259)]