18850563

素因数分解:

$3^4\times {\mathrm{53}}^1\times {\mathrm{4391}}^1$

素因数の和:4456

約数の個数: 20

約数和(自身を含む): 28697328

約数和(自身を除く): 9846765

約数列:

[1, 3, 9, 27, 53, 81, 159, 477, 1431, 4293, 4391, 13173, 39519, 118557, 232723, 355671, 698169, 2094507, 6283521, 18850563]

約数ペア:

[(1, 18850563), (3, 6283521), (9, 2094507), (27, 698169), (53, 355671), (81, 232723), (159, 118557), (477, 39519), (1431, 13173), (4293, 4391)]