20181281722

素因数分解:

$2^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{103}}^1\times {\mathrm{191717}}^1$

素因数の和:191902

約数の個数: 32

約数和(自身を含む): 35411081472

約数和(自身を除く): 15229799750

約数列:

[1, 2, 7, 14, 73, 103, 146, 206, 511, 721, 1022, 1442, 7519, 15038, 52633, 105266, 191717, 383434, 1342019, 2684038, 13995341, 19746851, 27990682, 39493702, 97967387, 138227957, 195934774, 276455914, 1441520123, 2883040246, 10090640861, 20181281722]

約数ペア:

[(1, 20181281722), (2, 10090640861), (7, 2883040246), (14, 1441520123), (73, 276455914), (103, 195934774), (146, 138227957), (206, 97967387), (511, 39493702), (721, 27990682), (1022, 19746851), (1442, 13995341), (7519, 2684038), (15038, 1342019), (52633, 383434), (105266, 191717)]