21904670

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{269}}^1\times {\mathrm{479}}^1$

素因数の和:772

約数の個数: 32

約数和(自身を含む): 41990400

約数和(自身を除く): 20085730

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 269, 479, 538, 958, 1345, 2395, 2690, 4573, 4790, 8143, 9146, 16286, 22865, 40715, 45730, 81430, 128851, 257702, 644255, 1288510, 2190467, 4380934, 10952335, 21904670]

約数ペア:

[(1, 21904670), (2, 10952335), (5, 4380934), (10, 2190467), (17, 1288510), (34, 644255), (85, 257702), (170, 128851), (269, 81430), (479, 45730), (538, 40715), (958, 22865), (1345, 16286), (2395, 9146), (2690, 8143), (4573, 4790)]