21010227

素因数分解:

$3^1\times 7^1\times {\mathrm{311}}^1\times {\mathrm{3217}}^1$

素因数の和:3538

約数の個数: 16

約数和(自身を含む): 32128512

約数和(自身を除く): 11118285

約数列:

[1, 3, 7, 21, 311, 933, 2177, 3217, 6531, 9651, 22519, 67557, 1000487, 3001461, 7003409, 21010227]

約数ペア:

[(1, 21010227), (3, 7003409), (7, 3001461), (21, 1000487), (311, 67557), (933, 22519), (2177, 9651), (3217, 6531)]