20953581

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{131}}^2$

素因数の和:313

約数の個数: 24

約数和(自身を含む): 31542432

約数和(自身を除く): 10588851

約数列:

[1, 3, 11, 33, 37, 111, 131, 393, 407, 1221, 1441, 4323, 4847, 14541, 17161, 51483, 53317, 159951, 188771, 566313, 634957, 1904871, 6984527, 20953581]

約数ペア:

[(1, 20953581), (3, 6984527), (11, 1904871), (33, 634957), (37, 566313), (111, 188771), (131, 159951), (393, 53317), (407, 51483), (1221, 17161), (1441, 14541), (4323, 4847)]