18771255

素因数分解:

$3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{3001}}^1$

素因数の和:3151

約数の個数: 24

約数和(自身を含む): 32781840

約数和(自身を除く): 14010585

約数列:

[1, 3, 5, 9, 15, 45, 139, 417, 695, 1251, 2085, 3001, 6255, 9003, 15005, 27009, 45015, 135045, 417139, 1251417, 2085695, 3754251, 6257085, 18771255]

約数ペア:

[(1, 18771255), (3, 6257085), (5, 3754251), (9, 2085695), (15, 1251417), (45, 417139), (139, 135045), (417, 45015), (695, 27009), (1251, 15005), (2085, 9003), (3001, 6255)]