18237765

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{431}}^1$

素因数の和:490

約数の個数: 64

約数和(自身を含む): 37158912

約数和(自身を除く): 18921147

約数列:

[1, 3, 5, 7, 13, 15, 21, 31, 35, 39, 65, 91, 93, 105, 155, 195, 217, 273, 403, 431, 455, 465, 651, 1085, 1209, 1293, 1365, 2015, 2155, 2821, 3017, 3255, 5603, 6045, 6465, 8463, 9051, 13361, 14105, 15085, 16809, 28015, 39221, 40083, 42315, 45255, 66805, 84045, 93527, 117663, 173693, 196105, 200415, 280581, 467635, 521079, 588315, 868465, 1215851, 1402905, 2605395, 3647553, 6079255, 18237765]

約数ペア:

[(1, 18237765), (3, 6079255), (5, 3647553), (7, 2605395), (13, 1402905), (15, 1215851), (21, 868465), (31, 588315), (35, 521079), (39, 467635), (65, 280581), (91, 200415), (93, 196105), (105, 173693), (155, 117663), (195, 93527), (217, 84045), (273, 66805), (403, 45255), (431, 42315), (455, 40083), (465, 39221), (651, 28015), (1085, 16809), (1209, 15085), (1293, 14105), (1365, 13361), (2015, 9051), (2155, 8463), (2821, 6465), (3017, 6045), (3255, 5603)]