21543555

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{2213}}^1$

素因数の和:2291

約数の個数: 32

約数和(自身を含む): 38257920

約数和(自身を除く): 16714365

約数列:

[1, 3, 5, 11, 15, 33, 55, 59, 165, 177, 295, 649, 885, 1947, 2213, 3245, 6639, 9735, 11065, 24343, 33195, 73029, 121715, 130567, 365145, 391701, 652835, 1436237, 1958505, 4308711, 7181185, 21543555]

約数ペア:

[(1, 21543555), (3, 7181185), (5, 4308711), (11, 1958505), (15, 1436237), (33, 652835), (55, 391701), (59, 365145), (165, 130567), (177, 121715), (295, 73029), (649, 33195), (885, 24343), (1947, 11065), (2213, 9735), (3245, 6639)]