18909032

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{257}}^1\times {\mathrm{541}}^1$

素因数の和:821

約数の個数: 32

約数和(自身を含む): 37755720

約数和(自身を除く): 18846688

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 257, 514, 541, 1028, 1082, 2056, 2164, 4328, 4369, 8738, 9197, 17476, 18394, 34952, 36788, 73576, 139037, 278074, 556148, 1112296, 2363629, 4727258, 9454516, 18909032]

約数ペア:

[(1, 18909032), (2, 9454516), (4, 4727258), (8, 2363629), (17, 1112296), (34, 556148), (68, 278074), (136, 139037), (257, 73576), (514, 36788), (541, 34952), (1028, 18394), (1082, 17476), (2056, 9197), (2164, 8738), (4328, 4369)]