21545931

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{97}}^1\times {\mathrm{127}}^1$

素因数の和:291

約数の個数: 32

約数和(自身を含む): 32514048

約数和(自身を除く): 10968117

約数列:

[1, 3, 11, 33, 53, 97, 127, 159, 291, 381, 583, 1067, 1397, 1749, 3201, 4191, 5141, 6731, 12319, 15423, 20193, 36957, 56551, 74041, 135509, 169653, 222123, 406527, 652907, 1958721, 7181977, 21545931]

約数ペア:

[(1, 21545931), (3, 7181977), (11, 1958721), (33, 652907), (53, 406527), (97, 222123), (127, 169653), (159, 135509), (291, 74041), (381, 56551), (583, 36957), (1067, 20193), (1397, 15423), (1749, 12319), (3201, 6731), (4191, 5141)]