21415569

素因数分解:

$3^1\times 7^1\times {\mathrm{317}}^1\times {\mathrm{3217}}^1$

素因数の和:3544

約数の個数: 16

約数和(自身を含む): 32746368

約数和(自身を除く): 11330799

約数列:

[1, 3, 7, 21, 317, 951, 2219, 3217, 6657, 9651, 22519, 67557, 1019789, 3059367, 7138523, 21415569]

約数ペア:

[(1, 21415569), (3, 7138523), (7, 3059367), (21, 1019789), (317, 67557), (951, 22519), (2219, 9651), (3217, 6657)]