17940321

素因数分解:

$3^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{2393}}^1$

素因数の和:2430

約数の個数: 36

約数和(自身を含む): 31931172

約数和(自身を除く): 13990851

約数列:

[1, 3, 7, 9, 17, 21, 49, 51, 63, 119, 147, 153, 357, 441, 833, 1071, 2393, 2499, 7179, 7497, 16751, 21537, 40681, 50253, 117257, 122043, 150759, 284767, 351771, 366129, 854301, 1055313, 1993369, 2562903, 5980107, 17940321]

約数ペア:

[(1, 17940321), (3, 5980107), (7, 2562903), (9, 1993369), (17, 1055313), (21, 854301), (49, 366129), (51, 351771), (63, 284767), (119, 150759), (147, 122043), (153, 117257), (357, 50253), (441, 40681), (833, 21537), (1071, 16751), (2393, 7497), (2499, 7179)]