218218724

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{151121}}^1$

素因数の和:151163

約数の個数: 18

約数和(自身を含む): 403042374

約数和(自身を除く): 184823650

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 1444, 151121, 302242, 604484, 2871299, 5742598, 11485196, 54554681, 109109362, 218218724]

約数ペア:

[(1, 218218724), (2, 109109362), (4, 54554681), (19, 11485196), (38, 5742598), (76, 2871299), (361, 604484), (722, 302242), (1444, 151121)]