19915504

素因数分解:

$2^4\times 7^1\times {\mathrm{41}}^1\times {\mathrm{4337}}^1$

素因数の和:4393

約数の個数: 40

約数和(自身を含む): 45184608

約数和(自身を除く): 25269104

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 41, 56, 82, 112, 164, 287, 328, 574, 656, 1148, 2296, 4337, 4592, 8674, 17348, 30359, 34696, 60718, 69392, 121436, 177817, 242872, 355634, 485744, 711268, 1244719, 1422536, 2489438, 2845072, 4978876, 9957752, 19915504]

約数ペア:

[(1, 19915504), (2, 9957752), (4, 4978876), (7, 2845072), (8, 2489438), (14, 1422536), (16, 1244719), (28, 711268), (41, 485744), (56, 355634), (82, 242872), (112, 177817), (164, 121436), (287, 69392), (328, 60718), (574, 34696), (656, 30359), (1148, 17348), (2296, 8674), (4337, 4592)]