21895157

素因数分解:

${\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:296

約数の個数: 16

約数和(自身を含む): 23324400

約数和(自身を除く): 1429243

約数列:

[1, 37, 61, 89, 109, 2257, 3293, 4033, 5429, 6649, 9701, 200873, 246013, 358937, 591761, 21895157]

約数ペア:

[(1, 21895157), (37, 591761), (61, 358937), (89, 246013), (109, 200873), (2257, 9701), (3293, 6649), (4033, 5429)]