20915465998

素因数分解:

$2^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{349}}^1\times {\mathrm{99551}}^1$

素因数の和:99952

約数の個数: 32

約数和(自身を含む): 36794419200

約数和(自身を除く): 15878953202

約数列:

[1, 2, 7, 14, 43, 86, 301, 349, 602, 698, 2443, 4886, 15007, 30014, 99551, 105049, 199102, 210098, 696857, 1393714, 4280693, 8561386, 29964851, 34743299, 59929702, 69486598, 243203093, 486406186, 1493961857, 2987923714, 10457732999, 20915465998]

約数ペア:

[(1, 20915465998), (2, 10457732999), (7, 2987923714), (14, 1493961857), (43, 486406186), (86, 243203093), (301, 69486598), (349, 59929702), (602, 34743299), (698, 29964851), (2443, 8561386), (4886, 4280693), (15007, 1393714), (30014, 696857), (99551, 210098), (105049, 199102)]