19885869

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{5651}}^1$

素因数の和:5697

約数の個数: 24

約数和(自身を含む): 31741632

約数和(自身を除く): 11855763

約数列:

[1, 3, 9, 17, 23, 51, 69, 153, 207, 391, 1173, 3519, 5651, 16953, 50859, 96067, 129973, 288201, 389919, 864603, 1169757, 2209541, 6628623, 19885869]

約数ペア:

[(1, 19885869), (3, 6628623), (9, 2209541), (17, 1169757), (23, 864603), (51, 389919), (69, 288201), (153, 129973), (207, 96067), (391, 50859), (1173, 16953), (3519, 5651)]