18947656

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1531}}^1$

素因数の和:1574

約数の個数: 64

約数和(自身を含む): 46327680

約数和(自身を除く): 27380024

約数列:

[1, 2, 4, 7, 8, 13, 14, 17, 26, 28, 34, 52, 56, 68, 91, 104, 119, 136, 182, 221, 238, 364, 442, 476, 728, 884, 952, 1531, 1547, 1768, 3062, 3094, 6124, 6188, 10717, 12248, 12376, 19903, 21434, 26027, 39806, 42868, 52054, 79612, 85736, 104108, 139321, 159224, 182189, 208216, 278642, 338351, 364378, 557284, 676702, 728756, 1114568, 1353404, 1457512, 2368457, 2706808, 4736914, 9473828, 18947656]

約数ペア:

[(1, 18947656), (2, 9473828), (4, 4736914), (7, 2706808), (8, 2368457), (13, 1457512), (14, 1353404), (17, 1114568), (26, 728756), (28, 676702), (34, 557284), (52, 364378), (56, 338351), (68, 278642), (91, 208216), (104, 182189), (119, 159224), (136, 139321), (182, 104108), (221, 85736), (238, 79612), (364, 52054), (442, 42868), (476, 39806), (728, 26027), (884, 21434), (952, 19903), (1531, 12376), (1547, 12248), (1768, 10717), (3062, 6188), (3094, 6124)]