20862764

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{2657}}^1$

素因数の和:2825

約数の個数: 24

約数和(自身を含む): 39593568

約数和(自身を除く): 18730804

約数列:

[1, 2, 4, 13, 26, 52, 151, 302, 604, 1963, 2657, 3926, 5314, 7852, 10628, 34541, 69082, 138164, 401207, 802414, 1604828, 5215691, 10431382, 20862764]

約数ペア:

[(1, 20862764), (2, 10431382), (4, 5215691), (13, 1604828), (26, 802414), (52, 401207), (151, 138164), (302, 69082), (604, 34541), (1963, 10628), (2657, 7852), (3926, 5314)]