21318935

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{151}}^2$

素因数の和:335

約数の個数: 24

約数和(自身を含む): 29747088

約数和(自身を除く): 8428153

約数列:

[1, 5, 11, 17, 55, 85, 151, 187, 755, 935, 1661, 2567, 8305, 12835, 22801, 28237, 114005, 141185, 250811, 387617, 1254055, 1938085, 4263787, 21318935]

約数ペア:

[(1, 21318935), (5, 4263787), (11, 1938085), (17, 1254055), (55, 387617), (85, 250811), (151, 141185), (187, 114005), (755, 28237), (935, 22801), (1661, 12835), (2567, 8305)]