21909240

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{60859}}^1$

素因数の和:60876

約数の個数: 48

約数和(自身を含む): 71206200

約数和(自身を除く): 49296960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 60859, 121718, 182577, 243436, 304295, 365154, 486872, 547731, 608590, 730308, 912885, 1095462, 1217180, 1460616, 1825770, 2190924, 2434360, 2738655, 3651540, 4381848, 5477310, 7303080, 10954620, 21909240]

約数ペア:

[(1, 21909240), (2, 10954620), (3, 7303080), (4, 5477310), (5, 4381848), (6, 3651540), (8, 2738655), (9, 2434360), (10, 2190924), (12, 1825770), (15, 1460616), (18, 1217180), (20, 1095462), (24, 912885), (30, 730308), (36, 608590), (40, 547731), (45, 486872), (60, 365154), (72, 304295), (90, 243436), (120, 182577), (180, 121718), (360, 60859)]