213968447

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{10729}}^1$

素因数の和:10791

約数の個数: 24

約数和(自身を含む): 278894160

約数和(自身を除く): 64925713

約数列:

[1, 7, 11, 37, 49, 77, 259, 407, 539, 1813, 2849, 10729, 19943, 75103, 118019, 396973, 525721, 826133, 2778811, 4366703, 5782931, 19451677, 30566921, 213968447]

約数ペア:

[(1, 213968447), (7, 30566921), (11, 19451677), (37, 5782931), (49, 4366703), (77, 2778811), (259, 826133), (407, 525721), (539, 396973), (1813, 118019), (2849, 75103), (10729, 19943)]