21171710

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{2003}}^1$

素因数の和:2168

約数の個数: 32

約数和(自身を含む): 43863552

約数和(自身を除く): 22691842

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 151, 302, 755, 1057, 1510, 2003, 2114, 4006, 5285, 10015, 10570, 14021, 20030, 28042, 70105, 140210, 302453, 604906, 1512265, 2117171, 3024530, 4234342, 10585855, 21171710]

約数ペア:

[(1, 21171710), (2, 10585855), (5, 4234342), (7, 3024530), (10, 2117171), (14, 1512265), (35, 604906), (70, 302453), (151, 140210), (302, 70105), (755, 28042), (1057, 20030), (1510, 14021), (2003, 10570), (2114, 10015), (4006, 5285)]