21130119626

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{137208569}}^1$

素因数の和:137208589

約数の個数: 16

約数和(自身を含む): 39516068160

約数和(自身を除く): 18385948534

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 137208569, 274417138, 960459983, 1509294259, 1920919966, 3018588518, 10565059813, 21130119626]

約数ペア:

[(1, 21130119626), (2, 10565059813), (7, 3018588518), (11, 1920919966), (14, 1509294259), (22, 960459983), (77, 274417138), (154, 137208569)]