19718433

素因数分解:

$3^2\times 7^2\times {\mathrm{61}}^1\times {\mathrm{733}}^1$

素因数の和:814

約数の個数: 36

約数和(自身を含む): 33721428

約数和(自身を除く): 14002995

約数列:

[1, 3, 7, 9, 21, 49, 61, 63, 147, 183, 427, 441, 549, 733, 1281, 2199, 2989, 3843, 5131, 6597, 8967, 15393, 26901, 35917, 44713, 46179, 107751, 134139, 312991, 323253, 402417, 938973, 2190937, 2816919, 6572811, 19718433]

約数ペア:

[(1, 19718433), (3, 6572811), (7, 2816919), (9, 2190937), (21, 938973), (49, 402417), (61, 323253), (63, 312991), (147, 134139), (183, 107751), (427, 46179), (441, 44713), (549, 35917), (733, 26901), (1281, 15393), (2199, 8967), (2989, 6597), (3843, 5131)]