20559968

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{4493}}^1$

素因数の和:4527

約数の個数: 48

約数和(自身を含む): 47564496

約数和(自身を除く): 27004528

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 32, 44, 52, 88, 104, 143, 176, 208, 286, 352, 416, 572, 1144, 2288, 4493, 4576, 8986, 17972, 35944, 49423, 58409, 71888, 98846, 116818, 143776, 197692, 233636, 395384, 467272, 642499, 790768, 934544, 1284998, 1581536, 1869088, 2569996, 5139992, 10279984, 20559968]

約数ペア:

[(1, 20559968), (2, 10279984), (4, 5139992), (8, 2569996), (11, 1869088), (13, 1581536), (16, 1284998), (22, 934544), (26, 790768), (32, 642499), (44, 467272), (52, 395384), (88, 233636), (104, 197692), (143, 143776), (176, 116818), (208, 98846), (286, 71888), (352, 58409), (416, 49423), (572, 35944), (1144, 17972), (2288, 8986), (4493, 4576)]