21575631

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{1213}}^1$

素因数の和:1252

約数の個数: 36

約数和(自身を含む): 36813336

約数和(自身を除く): 15237705

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 121, 147, 231, 363, 539, 847, 1213, 1617, 2541, 3639, 5929, 8491, 13343, 17787, 25473, 40029, 59437, 93401, 146773, 178311, 280203, 440319, 653807, 1027411, 1961421, 3082233, 7191877, 21575631]

約数ペア:

[(1, 21575631), (3, 7191877), (7, 3082233), (11, 1961421), (21, 1027411), (33, 653807), (49, 440319), (77, 280203), (121, 178311), (147, 146773), (231, 93401), (363, 59437), (539, 40029), (847, 25473), (1213, 17787), (1617, 13343), (2541, 8491), (3639, 5929)]