21940335

素因数分解:

$3^3\times 5^1\times {\mathrm{331}}^1\times {\mathrm{491}}^1$

素因数の和:836

約数の個数: 32

約数和(自身を含む): 39202560

約数和(自身を除く): 17262225

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 331, 491, 993, 1473, 1655, 2455, 2979, 4419, 4965, 7365, 8937, 13257, 14895, 22095, 44685, 66285, 162521, 487563, 812605, 1462689, 2437815, 4388067, 7313445, 21940335]

約数ペア:

[(1, 21940335), (3, 7313445), (5, 4388067), (9, 2437815), (15, 1462689), (27, 812605), (45, 487563), (135, 162521), (331, 66285), (491, 44685), (993, 22095), (1473, 14895), (1655, 13257), (2455, 8937), (2979, 7365), (4419, 4965)]