20821430

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{17497}}^1$

素因数の和:17528

約数の個数: 32

約数和(自身を含む): 45354816

約数和(自身を除く): 24533386

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 70, 85, 119, 170, 238, 595, 1190, 17497, 34994, 87485, 122479, 174970, 244958, 297449, 594898, 612395, 1224790, 1487245, 2082143, 2974490, 4164286, 10410715, 20821430]

約数ペア:

[(1, 20821430), (2, 10410715), (5, 4164286), (7, 2974490), (10, 2082143), (14, 1487245), (17, 1224790), (34, 612395), (35, 594898), (70, 297449), (85, 244958), (119, 174970), (170, 122479), (238, 87485), (595, 34994), (1190, 17497)]