19418488

素因数分解:

$2^3\times {\mathrm{17}}^2\times {\mathrm{37}}^1\times {\mathrm{227}}^1$

素因数の和:304

約数の個数: 48

約数和(自身を含む): 39897720

約数和(自身を除く): 20479232

約数列:

[1, 2, 4, 8, 17, 34, 37, 68, 74, 136, 148, 227, 289, 296, 454, 578, 629, 908, 1156, 1258, 1816, 2312, 2516, 3859, 5032, 7718, 8399, 10693, 15436, 16798, 21386, 30872, 33596, 42772, 65603, 67192, 85544, 131206, 142783, 262412, 285566, 524824, 571132, 1142264, 2427311, 4854622, 9709244, 19418488]

約数ペア:

[(1, 19418488), (2, 9709244), (4, 4854622), (8, 2427311), (17, 1142264), (34, 571132), (37, 524824), (68, 285566), (74, 262412), (136, 142783), (148, 131206), (227, 85544), (289, 67192), (296, 65603), (454, 42772), (578, 33596), (629, 30872), (908, 21386), (1156, 16798), (1258, 15436), (1816, 10693), (2312, 8399), (2516, 7718), (3859, 5032)]