21676870

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{2713}}^1$

素因数の和:2784

約数の個数: 32

約数和(自身を含む): 42208128

約数和(自身を除く): 20531258

約数列:

[1, 2, 5, 10, 17, 34, 47, 85, 94, 170, 235, 470, 799, 1598, 2713, 3995, 5426, 7990, 13565, 27130, 46121, 92242, 127511, 230605, 255022, 461210, 637555, 1275110, 2167687, 4335374, 10838435, 21676870]

約数ペア:

[(1, 21676870), (2, 10838435), (5, 4335374), (10, 2167687), (17, 1275110), (34, 637555), (47, 461210), (85, 255022), (94, 230605), (170, 127511), (235, 92242), (470, 46121), (799, 27130), (1598, 13565), (2713, 7990), (3995, 5426)]