201791991

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{19801}}^1$

素因数の和:19926

約数の個数: 16

約数和(自身を含む): 278812160

約数和(自身を除く): 77020169

約数列:

[1, 3, 43, 79, 129, 237, 3397, 10191, 19801, 59403, 851443, 1564279, 2554329, 4692837, 67263997, 201791991]

約数ペア:

[(1, 201791991), (3, 67263997), (43, 4692837), (79, 2554329), (129, 1564279), (237, 851443), (3397, 59403), (10191, 19801)]