20961382

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{18749}}^1$

素因数の和:18807

約数の個数: 16

約数和(自身を含む): 34650000

約数和(自身を除く): 13688618

約数列:

[1, 2, 13, 26, 43, 86, 559, 1118, 18749, 37498, 243737, 487474, 806207, 1612414, 10480691, 20961382]

約数ペア:

[(1, 20961382), (2, 10480691), (13, 1612414), (26, 806207), (43, 487474), (86, 243737), (559, 37498), (1118, 18749)]