21696020

素因数分解:

$2^2\times 5^1\times {\mathrm{887}}^1\times {\mathrm{1223}}^1$

素因数の和:2119

約数の個数: 24

約数和(自身を含む): 45650304

約数和(自身を除く): 23954284

約数列:

[1, 2, 4, 5, 10, 20, 887, 1223, 1774, 2446, 3548, 4435, 4892, 6115, 8870, 12230, 17740, 24460, 1084801, 2169602, 4339204, 5424005, 10848010, 21696020]

約数ペア:

[(1, 21696020), (2, 10848010), (4, 5424005), (5, 4339204), (10, 2169602), (20, 1084801), (887, 24460), (1223, 17740), (1774, 12230), (2446, 8870), (3548, 6115), (4435, 4892)]