18861231

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{367}}^1\times {\mathrm{463}}^1$

素因数の和:870

約数の個数: 16

約数和(自身を含む): 25954304

約数和(自身を除く): 7093073

約数列:

[1, 3, 37, 111, 367, 463, 1101, 1389, 13579, 17131, 40737, 51393, 169921, 509763, 6287077, 18861231]

約数ペア:

[(1, 18861231), (3, 6287077), (37, 509763), (111, 169921), (367, 51393), (463, 40737), (1101, 17131), (1389, 13579)]