18900413

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{2237}}^1$

素因数の和:2332

約数の個数: 16

約数和(自身を含む): 23203584

約数和(自身を除く): 4303171

約数列:

[1, 7, 17, 71, 119, 497, 1207, 2237, 8449, 15659, 38029, 158827, 266203, 1111789, 2700059, 18900413]

約数ペア:

[(1, 18900413), (7, 2700059), (17, 1111789), (71, 266203), (119, 158827), (497, 38029), (1207, 15659), (2237, 8449)]