21230278

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{307}}^1\times {\mathrm{487}}^1$

素因数の和:867

約数の個数: 16

約数和(自身を含む): 32465664

約数和(自身を除く): 11235386

約数列:

[1, 2, 71, 142, 307, 487, 614, 974, 21797, 34577, 43594, 69154, 149509, 299018, 10615139, 21230278]

約数ペア:

[(1, 21230278), (2, 10615139), (71, 299018), (142, 149509), (307, 69154), (487, 43594), (614, 34577), (974, 21797)]