289721103

素因数分解:

$3^1\times 7^1\times {\mathrm{641}}^1\times {\mathrm{21523}}^1$

素因数の和:22174

約数の個数: 16

約数和(自身を含む): 442189056

約数和(自身を除く): 152467953

約数列:

[1, 3, 7, 21, 641, 1923, 4487, 13461, 21523, 64569, 150661, 451983, 13796243, 41388729, 96573701, 289721103]

約数ペア:

[(1, 289721103), (3, 96573701), (7, 41388729), (21, 13796243), (641, 451983), (1923, 150661), (4487, 64569), (13461, 21523)]