20948590

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{9479}}^1$

素因数の和:9516

約数の個数: 32

約数和(自身を含む): 43001280

約数和(自身を除く): 22052690

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 170, 221, 442, 1105, 2210, 9479, 18958, 47395, 94790, 123227, 161143, 246454, 322286, 616135, 805715, 1232270, 1611430, 2094859, 4189718, 10474295, 20948590]

約数ペア:

[(1, 20948590), (2, 10474295), (5, 4189718), (10, 2094859), (13, 1611430), (17, 1232270), (26, 805715), (34, 616135), (65, 322286), (85, 246454), (130, 161143), (170, 123227), (221, 94790), (442, 47395), (1105, 18958), (2210, 9479)]