210399231

素因数分解:

$3^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{76481}}^1$

素因数の和:76622

約数の個数: 16

約数和(自身を含む): 323059968

約数和(自身を除く): 112660737

約数列:

[1, 3, 7, 21, 131, 393, 917, 2751, 76481, 229443, 535367, 1606101, 10019011, 30057033, 70133077, 210399231]

約数ペア:

[(1, 210399231), (3, 70133077), (7, 30057033), (21, 10019011), (131, 1606101), (393, 535367), (917, 229443), (2751, 76481)]