18640347

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{223}}^1$

素因数の和:403

約数の個数: 32

約数和(自身を含む): 29030400

約数和(自身を除く): 10390053

約数列:

[1, 3, 11, 17, 33, 51, 149, 187, 223, 447, 561, 669, 1639, 2453, 2533, 3791, 4917, 7359, 7599, 11373, 27863, 33227, 41701, 83589, 99681, 125103, 365497, 564859, 1096491, 1694577, 6213449, 18640347]

約数ペア:

[(1, 18640347), (3, 6213449), (11, 1694577), (17, 1096491), (33, 564859), (51, 365497), (149, 125103), (187, 99681), (223, 83589), (447, 41701), (561, 33227), (669, 27863), (1639, 11373), (2453, 7599), (2533, 7359), (3791, 4917)]