21358048

素因数分解:

$2^5\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{223}}^1$

素因数の和:347

約数の個数: 48

約数和(自身を含む): 43860096

約数和(自身を除く): 22502048

約数列:

[1, 2, 4, 8, 16, 32, 41, 73, 82, 146, 164, 223, 292, 328, 446, 584, 656, 892, 1168, 1312, 1784, 2336, 2993, 3568, 5986, 7136, 9143, 11972, 16279, 18286, 23944, 32558, 36572, 47888, 65116, 73144, 95776, 130232, 146288, 260464, 292576, 520928, 667439, 1334878, 2669756, 5339512, 10679024, 21358048]

約数ペア:

[(1, 21358048), (2, 10679024), (4, 5339512), (8, 2669756), (16, 1334878), (32, 667439), (41, 520928), (73, 292576), (82, 260464), (146, 146288), (164, 130232), (223, 95776), (292, 73144), (328, 65116), (446, 47888), (584, 36572), (656, 32558), (892, 23944), (1168, 18286), (1312, 16279), (1784, 11972), (2336, 9143), (2993, 7136), (3568, 5986)]