81482721

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{947}}^1$

素因数の和:1045

約数の個数: 32

約数和(自身を含む): 120130560

約数和(自身を除く): 38647839

約数列:

[1, 3, 23, 29, 43, 69, 87, 129, 667, 947, 989, 1247, 2001, 2841, 2967, 3741, 21781, 27463, 28681, 40721, 65343, 82389, 86043, 122163, 631649, 936583, 1180909, 1894947, 2809749, 3542727, 27160907, 81482721]

約数ペア:

[(1, 81482721), (3, 27160907), (23, 3542727), (29, 2809749), (43, 1894947), (69, 1180909), (87, 936583), (129, 631649), (667, 122163), (947, 86043), (989, 82389), (1247, 65343), (2001, 40721), (2841, 28681), (2967, 27463), (3741, 21781)]