21090296

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{1657}}^1$

素因数の和:1743

約数の個数: 32

約数和(自身を含む): 41582640

約数和(自身を除く): 20492344

約数列:

[1, 2, 4, 8, 37, 43, 74, 86, 148, 172, 296, 344, 1591, 1657, 3182, 3314, 6364, 6628, 12728, 13256, 61309, 71251, 122618, 142502, 245236, 285004, 490472, 570008, 2636287, 5272574, 10545148, 21090296]

約数ペア:

[(1, 21090296), (2, 10545148), (4, 5272574), (8, 2636287), (37, 570008), (43, 490472), (74, 285004), (86, 245236), (148, 142502), (172, 122618), (296, 71251), (344, 61309), (1591, 13256), (1657, 12728), (3182, 6628), (3314, 6364)]