3640707

素因数分解:

$3^4\times 7^1\times {\mathrm{6421}}^1$

素因数の和:6440

約数の個数: 20

約数和(自身を含む): 6216496

約数和(自身を除く): 2575789

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 6421, 19263, 44947, 57789, 134841, 173367, 404523, 520101, 1213569, 3640707]

約数ペア:

[(1, 3640707), (3, 1213569), (7, 520101), (9, 404523), (21, 173367), (27, 134841), (63, 57789), (81, 44947), (189, 19263), (567, 6421)]