21161640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{176347}}^1$

素因数の和:176361

約数の個数: 32

約数和(自身を含む): 63485280

約数和(自身を除く): 42323640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 176347, 352694, 529041, 705388, 881735, 1058082, 1410776, 1763470, 2116164, 2645205, 3526940, 4232328, 5290410, 7053880, 10580820, 21161640]

約数ペア:

[(1, 21161640), (2, 10580820), (3, 7053880), (4, 5290410), (5, 4232328), (6, 3526940), (8, 2645205), (10, 2116164), (12, 1763470), (15, 1410776), (20, 1058082), (24, 881735), (30, 705388), (40, 529041), (60, 352694), (120, 176347)]