221520765

素因数分解:

$3^1\times 5^1\times {\mathrm{3413}}^1\times {\mathrm{4327}}^1$

素因数の和:7748

約数の個数: 16

約数和(自身を含む): 354619008

約数和(自身を除く): 133098243

約数列:

[1, 3, 5, 15, 3413, 4327, 10239, 12981, 17065, 21635, 51195, 64905, 14768051, 44304153, 73840255, 221520765]

約数ペア:

[(1, 221520765), (3, 73840255), (5, 44304153), (15, 14768051), (3413, 64905), (4327, 51195), (10239, 21635), (12981, 17065)]