21985695

素因数分解:

$3^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{1093}}^1$

素因数の和:1256

約数の個数: 32

約数和(自身を含む): 39384000

約数和(自身を除く): 17398305

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 149, 447, 745, 1093, 1341, 2235, 3279, 4023, 5465, 6705, 9837, 16395, 20115, 29511, 49185, 147555, 162857, 488571, 814285, 1465713, 2442855, 4397139, 7328565, 21985695]

約数ペア:

[(1, 21985695), (3, 7328565), (5, 4397139), (9, 2442855), (15, 1465713), (27, 814285), (45, 488571), (135, 162857), (149, 147555), (447, 49185), (745, 29511), (1093, 20115), (1341, 16395), (2235, 9837), (3279, 6705), (4023, 5465)]