18879663

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{3307}}^1$

素因数の和:3494

約数の個数: 16

約数和(自身を含む): 27628416

約数和(自身を除く): 8748753

約数列:

[1, 3, 11, 33, 173, 519, 1903, 3307, 5709, 9921, 36377, 109131, 572111, 1716333, 6293221, 18879663]

約数ペア:

[(1, 18879663), (3, 6293221), (11, 1716333), (33, 572111), (173, 109131), (519, 36377), (1903, 9921), (3307, 5709)]