20589604

素因数分解:

$2^2\times 7^3\times {\mathrm{43}}^1\times {\mathrm{349}}^1$

素因数の和:417

約数の個数: 48

約数和(自身を含む): 43120000

約数和(自身を除く): 22530396

約数列:

[1, 2, 4, 7, 14, 28, 43, 49, 86, 98, 172, 196, 301, 343, 349, 602, 686, 698, 1204, 1372, 1396, 2107, 2443, 4214, 4886, 8428, 9772, 14749, 15007, 17101, 29498, 30014, 34202, 58996, 60028, 68404, 105049, 119707, 210098, 239414, 420196, 478828, 735343, 1470686, 2941372, 5147401, 10294802, 20589604]

約数ペア:

[(1, 20589604), (2, 10294802), (4, 5147401), (7, 2941372), (14, 1470686), (28, 735343), (43, 478828), (49, 420196), (86, 239414), (98, 210098), (172, 119707), (196, 105049), (301, 68404), (343, 60028), (349, 58996), (602, 34202), (686, 30014), (698, 29498), (1204, 17101), (1372, 15007), (1396, 14749), (2107, 9772), (2443, 8428), (4214, 4886)]