20517296

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{18061}}^1$

素因数の和:18140

約数の個数: 20

約数和(自身を含む): 40314384

約数和(自身を除く): 19797088

約数列:

[1, 2, 4, 8, 16, 71, 142, 284, 568, 1136, 18061, 36122, 72244, 144488, 288976, 1282331, 2564662, 5129324, 10258648, 20517296]

約数ペア:

[(1, 20517296), (2, 10258648), (4, 5129324), (8, 2564662), (16, 1282331), (71, 288976), (142, 144488), (284, 72244), (568, 36122), (1136, 18061)]