20022345

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{3739}}^1$

素因数の和:3774

約数の個数: 48

約数和(自身を含む): 42007680

約数和(自身を除く): 21985335

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 35, 45, 51, 63, 85, 105, 119, 153, 255, 315, 357, 595, 765, 1071, 1785, 3739, 5355, 11217, 18695, 26173, 33651, 56085, 63563, 78519, 130865, 168255, 190689, 235557, 317815, 392595, 444941, 572067, 953445, 1177785, 1334823, 2224705, 2860335, 4004469, 6674115, 20022345]

約数ペア:

[(1, 20022345), (3, 6674115), (5, 4004469), (7, 2860335), (9, 2224705), (15, 1334823), (17, 1177785), (21, 953445), (35, 572067), (45, 444941), (51, 392595), (63, 317815), (85, 235557), (105, 190689), (119, 168255), (153, 130865), (255, 78519), (315, 63563), (357, 56085), (595, 33651), (765, 26173), (1071, 18695), (1785, 11217), (3739, 5355)]