18812451

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47149}}^1$

素因数の和:47178

約数の個数: 16

約数和(自身を含む): 30176000

約数和(自身を除く): 11363549

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 47149, 141447, 330043, 895831, 990129, 2687493, 6270817, 18812451]

約数ペア:

[(1, 18812451), (3, 6270817), (7, 2687493), (19, 990129), (21, 895831), (57, 330043), (133, 141447), (399, 47149)]