21085435

素因数分解:

$5^1\times 7^2\times {\mathrm{89}}^1\times {\mathrm{967}}^1$

素因数の和:1075

約数の個数: 24

約数和(自身を含む): 29795040

約数和(自身を除く): 8709605

約数列:

[1, 5, 7, 35, 49, 89, 245, 445, 623, 967, 3115, 4361, 4835, 6769, 21805, 33845, 47383, 86063, 236915, 430315, 602441, 3012205, 4217087, 21085435]

約数ペア:

[(1, 21085435), (5, 4217087), (7, 3012205), (35, 602441), (49, 430315), (89, 236915), (245, 86063), (445, 47383), (623, 33845), (967, 21805), (3115, 6769), (4361, 4835)]