20621744

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{9013}}^1$

素因数の和:9045

約数の個数: 40

約数和(自身を含む): 46944912

約数和(自身を除く): 26323168

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 44, 52, 88, 104, 143, 176, 208, 286, 572, 1144, 2288, 9013, 18026, 36052, 72104, 99143, 117169, 144208, 198286, 234338, 396572, 468676, 793144, 937352, 1288859, 1586288, 1874704, 2577718, 5155436, 10310872, 20621744]

約数ペア:

[(1, 20621744), (2, 10310872), (4, 5155436), (8, 2577718), (11, 1874704), (13, 1586288), (16, 1288859), (22, 937352), (26, 793144), (44, 468676), (52, 396572), (88, 234338), (104, 198286), (143, 144208), (176, 117169), (208, 99143), (286, 72104), (572, 36052), (1144, 18026), (2288, 9013)]