19925271

素因数分解:

$3^5\times {\mathrm{167}}^1\times {\mathrm{491}}^1$

素因数の和:673

約数の個数: 24

約数和(自身を含む): 30086784

約数和(自身を除く): 10161513

約数列:

[1, 3, 9, 27, 81, 167, 243, 491, 501, 1473, 1503, 4419, 4509, 13257, 13527, 39771, 40581, 81997, 119313, 245991, 737973, 2213919, 6641757, 19925271]

約数ペア:

[(1, 19925271), (3, 6641757), (9, 2213919), (27, 737973), (81, 245991), (167, 119313), (243, 81997), (491, 40581), (501, 39771), (1473, 13527), (1503, 13257), (4419, 4509)]