221520607

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{21961}}^1$

素因数の和:22110

約数の個数: 16

約数和(自身を含む): 278302464

約数和(自身を除く): 56781857

約数列:

[1, 7, 11, 77, 131, 917, 1441, 10087, 21961, 153727, 241571, 1690997, 2876891, 20138237, 31645801, 221520607]

約数ペア:

[(1, 221520607), (7, 31645801), (11, 20138237), (77, 2876891), (131, 1690997), (917, 241571), (1441, 153727), (10087, 21961)]