18718918

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{229}}^1\times {\mathrm{1777}}^1$

素因数の和:2031

約数の個数: 16

約数和(自身を含む): 29443680

約数和(自身を除く): 10724762

約数列:

[1, 2, 23, 46, 229, 458, 1777, 3554, 5267, 10534, 40871, 81742, 406933, 813866, 9359459, 18718918]

約数ペア:

[(1, 18718918), (2, 9359459), (23, 813866), (46, 406933), (229, 81742), (458, 40871), (1777, 10534), (3554, 5267)]