20966950

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^2\times {\mathrm{1451}}^1$

素因数の和:1497

約数の個数: 36

約数和(自身を含む): 41456052

約数和(自身を除く): 20489102

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 85, 170, 289, 425, 578, 850, 1445, 1451, 2890, 2902, 7225, 7255, 14450, 14510, 24667, 36275, 49334, 72550, 123335, 246670, 419339, 616675, 838678, 1233350, 2096695, 4193390, 10483475, 20966950]

約数ペア:

[(1, 20966950), (2, 10483475), (5, 4193390), (10, 2096695), (17, 1233350), (25, 838678), (34, 616675), (50, 419339), (85, 246670), (170, 123335), (289, 72550), (425, 49334), (578, 36275), (850, 24667), (1445, 14510), (1451, 14450), (2890, 7255), (2902, 7225)]