21000888035

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{122251}}^1$

素因数の和:122363

約数の個数: 32

約数和(自身を含む): 27885192192

約数和(自身を除く): 6884304157

約数列:

[1, 5, 17, 43, 47, 85, 215, 235, 731, 799, 2021, 3655, 3995, 10105, 34357, 122251, 171785, 611255, 2078267, 5256793, 5745797, 10391335, 26283965, 28728985, 89365481, 97678549, 247069271, 446827405, 488392745, 1235346355, 4200177607, 21000888035]

約数ペア:

[(1, 21000888035), (5, 4200177607), (17, 1235346355), (43, 488392745), (47, 446827405), (85, 247069271), (215, 97678549), (235, 89365481), (731, 28728985), (799, 26283965), (2021, 10391335), (3655, 5745797), (3995, 5256793), (10105, 2078267), (34357, 611255), (122251, 171785)]