18782816

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{277}}^1$

素因数の和:463

約数の個数: 48

約数和(自身を含む): 40212144

約数和(自身を除く): 21429328

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 163, 208, 277, 326, 416, 554, 652, 1108, 1304, 2119, 2216, 2608, 3601, 4238, 4432, 5216, 7202, 8476, 8864, 14404, 16952, 28808, 33904, 45151, 57616, 67808, 90302, 115232, 180604, 361208, 586963, 722416, 1173926, 1444832, 2347852, 4695704, 9391408, 18782816]

約数ペア:

[(1, 18782816), (2, 9391408), (4, 4695704), (8, 2347852), (13, 1444832), (16, 1173926), (26, 722416), (32, 586963), (52, 361208), (104, 180604), (163, 115232), (208, 90302), (277, 67808), (326, 57616), (416, 45151), (554, 33904), (652, 28808), (1108, 16952), (1304, 14404), (2119, 8864), (2216, 8476), (2608, 7202), (3601, 5216), (4238, 4432)]