20925929

素因数分解:

${\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{491}}^1$

素因数の和:640

約数の個数: 16

約数和(自身を含む): 23379840

約数和(自身を除く): 2453911

約数列:

[1, 17, 23, 109, 391, 491, 1853, 2507, 8347, 11293, 42619, 53519, 191981, 909823, 1230937, 20925929]

約数ペア:

[(1, 20925929), (17, 1230937), (23, 909823), (109, 191981), (391, 53519), (491, 42619), (1853, 11293), (2507, 8347)]