128567691

素因数分解:

$3^2\times 7^1\times {\mathrm{521}}^1\times {\mathrm{3917}}^1$

素因数の和:4451

約数の個数: 24

約数和(自身を含む): 212700384

約数和(自身を除く): 84132693

約数列:

[1, 3, 7, 9, 21, 63, 521, 1563, 3647, 3917, 4689, 10941, 11751, 27419, 32823, 35253, 82257, 246771, 2040757, 6122271, 14285299, 18366813, 42855897, 128567691]

約数ペア:

[(1, 128567691), (3, 42855897), (7, 18366813), (9, 14285299), (21, 6122271), (63, 2040757), (521, 246771), (1563, 82257), (3647, 35253), (3917, 32823), (4689, 27419), (10941, 11751)]