18169736

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{239}}^1$

素因数の和:318

約数の個数: 64

約数和(自身を含む): 39916800

約数和(自身を除く): 21747064

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 43, 52, 68, 86, 104, 136, 172, 221, 239, 344, 442, 478, 559, 731, 884, 956, 1118, 1462, 1768, 1912, 2236, 2924, 3107, 4063, 4472, 5848, 6214, 8126, 9503, 10277, 12428, 16252, 19006, 20554, 24856, 32504, 38012, 41108, 52819, 76024, 82216, 105638, 133601, 174709, 211276, 267202, 349418, 422552, 534404, 698836, 1068808, 1397672, 2271217, 4542434, 9084868, 18169736]

約数ペア:

[(1, 18169736), (2, 9084868), (4, 4542434), (8, 2271217), (13, 1397672), (17, 1068808), (26, 698836), (34, 534404), (43, 422552), (52, 349418), (68, 267202), (86, 211276), (104, 174709), (136, 133601), (172, 105638), (221, 82216), (239, 76024), (344, 52819), (442, 41108), (478, 38012), (559, 32504), (731, 24856), (884, 20554), (956, 19006), (1118, 16252), (1462, 12428), (1768, 10277), (1912, 9503), (2236, 8126), (2924, 6214), (3107, 5848), (4063, 4472)]