18197228

素因数分解:

$2^2\times 7^2\times {\mathrm{227}}^1\times {\mathrm{409}}^1$

素因数の和:654

約数の個数: 36

約数和(自身を含む): 37298520

約数和(自身を除く): 19101292

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 227, 409, 454, 818, 908, 1589, 1636, 2863, 3178, 5726, 6356, 11123, 11452, 20041, 22246, 40082, 44492, 80164, 92843, 185686, 371372, 649901, 1299802, 2599604, 4549307, 9098614, 18197228]

約数ペア:

[(1, 18197228), (2, 9098614), (4, 4549307), (7, 2599604), (14, 1299802), (28, 649901), (49, 371372), (98, 185686), (196, 92843), (227, 80164), (409, 44492), (454, 40082), (818, 22246), (908, 20041), (1589, 11452), (1636, 11123), (2863, 6356), (3178, 5726)]