19995578

素因数分解:

$2^1\times {\mathrm{131}}^1\times {\mathrm{167}}^1\times {\mathrm{457}}^1$

素因数の和:757

約数の個数: 16

約数和(自身を含む): 30469824

約数和(自身を除く): 10474246

約数列:

[1, 2, 131, 167, 262, 334, 457, 914, 21877, 43754, 59867, 76319, 119734, 152638, 9997789, 19995578]

約数ペア:

[(1, 19995578), (2, 9997789), (131, 152638), (167, 119734), (262, 76319), (334, 59867), (457, 43754), (914, 21877)]