221528991

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{13109}}^1$

素因数の和:13286

約数の個数: 16

約数和(自身を含む): 304571520

約数和(自身を除く): 83042529

約数列:

[1, 3, 43, 129, 131, 393, 5633, 13109, 16899, 39327, 563687, 1691061, 1717279, 5151837, 73842997, 221528991]

約数ペア:

[(1, 221528991), (3, 73842997), (43, 5151837), (129, 1717279), (131, 1691061), (393, 563687), (5633, 39327), (13109, 16899)]