21609335990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{196448509}}^1$

素因数の和:196448527

約数の個数: 16

約数和(自身を含む): 42432878160

約数和(自身を除く): 20823542170

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 196448509, 392897018, 982242545, 1964485090, 2160933599, 4321867198, 10804667995, 21609335990]

約数ペア:

[(1, 21609335990), (2, 10804667995), (5, 4321867198), (10, 2160933599), (11, 1964485090), (22, 982242545), (55, 392897018), (110, 196448509)]