20553104

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{691}}^1$

素因数の和:736

約数の個数: 60

約数和(自身を含む): 47108592

約数和(自身を除く): 26555488

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 44, 52, 88, 104, 143, 169, 176, 208, 286, 338, 572, 676, 691, 1144, 1352, 1382, 1859, 2288, 2704, 2764, 3718, 5528, 7436, 7601, 8983, 11056, 14872, 15202, 17966, 29744, 30404, 35932, 60808, 71864, 98813, 116779, 121616, 143728, 197626, 233558, 395252, 467116, 790504, 934232, 1284569, 1581008, 1868464, 2569138, 5138276, 10276552, 20553104]

約数ペア:

[(1, 20553104), (2, 10276552), (4, 5138276), (8, 2569138), (11, 1868464), (13, 1581008), (16, 1284569), (22, 934232), (26, 790504), (44, 467116), (52, 395252), (88, 233558), (104, 197626), (143, 143728), (169, 121616), (176, 116779), (208, 98813), (286, 71864), (338, 60808), (572, 35932), (676, 30404), (691, 29744), (1144, 17966), (1352, 15202), (1382, 14872), (1859, 11056), (2288, 8983), (2704, 7601), (2764, 7436), (3718, 5528)]