220173457

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{20411}}^1$

素因数の和:20508

約数の個数: 16

約数和(自身を含む): 266499072

約数和(自身を除く): 46325615

約数列:

[1, 7, 23, 67, 161, 469, 1541, 10787, 20411, 142877, 469453, 1367537, 3286171, 9572759, 31453351, 220173457]

約数ペア:

[(1, 220173457), (7, 31453351), (23, 9572759), (67, 3286171), (161, 1367537), (469, 469453), (1541, 142877), (10787, 20411)]