18876957

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{251}}^1$

素因数の和:361

約数の個数: 32

約数和(自身を含む): 28740096

約数和(自身を除く): 9863139

約数列:

[1, 3, 11, 33, 43, 53, 129, 159, 251, 473, 583, 753, 1419, 1749, 2279, 2761, 6837, 8283, 10793, 13303, 25069, 32379, 39909, 75207, 118723, 146333, 356169, 438999, 572029, 1716087, 6292319, 18876957]

約数ペア:

[(1, 18876957), (3, 6292319), (11, 1716087), (33, 572029), (43, 438999), (53, 356169), (129, 146333), (159, 118723), (251, 75207), (473, 39909), (583, 32379), (753, 25069), (1419, 13303), (1749, 10793), (2279, 8283), (2761, 6837)]