18731331

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{223}}^1$

素因数の和:313

約数の個数: 40

約数和(自身を含む): 30248064

約数和(自身を除く): 11516733

約数列:

[1, 3, 9, 17, 27, 51, 61, 81, 153, 183, 223, 459, 549, 669, 1037, 1377, 1647, 2007, 3111, 3791, 4941, 6021, 9333, 11373, 13603, 18063, 27999, 34119, 40809, 83997, 102357, 122427, 231251, 307071, 367281, 693753, 1101843, 2081259, 6243777, 18731331]

約数ペア:

[(1, 18731331), (3, 6243777), (9, 2081259), (17, 1101843), (27, 693753), (51, 367281), (61, 307071), (81, 231251), (153, 122427), (183, 102357), (223, 83997), (459, 40809), (549, 34119), (669, 27999), (1037, 18063), (1377, 13603), (1647, 11373), (2007, 9333), (3111, 6021), (3791, 4941)]