15209649

素因数分解:

$3^2\times 7^3\times {\mathrm{13}}^1\times {\mathrm{379}}^1$

素因数の和:419

約数の個数: 48

約数和(自身を含む): 27664000

約数和(自身を除く): 12454351

約数列:

[1, 3, 7, 9, 13, 21, 39, 49, 63, 91, 117, 147, 273, 343, 379, 441, 637, 819, 1029, 1137, 1911, 2653, 3087, 3411, 4459, 4927, 5733, 7959, 13377, 14781, 18571, 23877, 34489, 40131, 44343, 55713, 103467, 129997, 167139, 241423, 310401, 389991, 724269, 1169973, 1689961, 2172807, 5069883, 15209649]

約数ペア:

[(1, 15209649), (3, 5069883), (7, 2172807), (9, 1689961), (13, 1169973), (21, 724269), (39, 389991), (49, 310401), (63, 241423), (91, 167139), (117, 129997), (147, 103467), (273, 55713), (343, 44343), (379, 40131), (441, 34489), (637, 23877), (819, 18571), (1029, 14781), (1137, 13377), (1911, 7959), (2653, 5733), (3087, 4927), (3411, 4459)]