20489898

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^2\times {\mathrm{13}}^2\times {\mathrm{167}}^1$

素因数の和:220

約数の個数: 72

約数和(自身を含む): 49067424

約数和(自身を除く): 28577526

約数列:

[1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 66, 78, 121, 143, 167, 169, 242, 286, 334, 338, 363, 429, 501, 507, 726, 858, 1002, 1014, 1573, 1837, 1859, 2171, 3146, 3674, 3718, 4342, 4719, 5511, 5577, 6513, 9438, 11022, 11154, 13026, 20207, 20449, 23881, 28223, 40414, 40898, 47762, 56446, 60621, 61347, 71643, 84669, 121242, 122694, 143286, 169338, 262691, 310453, 525382, 620906, 788073, 931359, 1576146, 1862718, 3414983, 6829966, 10244949, 20489898]

約数ペア:

[(1, 20489898), (2, 10244949), (3, 6829966), (6, 3414983), (11, 1862718), (13, 1576146), (22, 931359), (26, 788073), (33, 620906), (39, 525382), (66, 310453), (78, 262691), (121, 169338), (143, 143286), (167, 122694), (169, 121242), (242, 84669), (286, 71643), (334, 61347), (338, 60621), (363, 56446), (429, 47762), (501, 40898), (507, 40414), (726, 28223), (858, 23881), (1002, 20449), (1014, 20207), (1573, 13026), (1837, 11154), (1859, 11022), (2171, 9438), (3146, 6513), (3674, 5577), (3718, 5511), (4342, 4719)]