21043246

素因数分解:

$2^1\times 7^2\times {\mathrm{17}}^2\times {\mathrm{743}}^1$

素因数の和:793

約数の個数: 36

約数和(自身を含む): 39057768

約数和(自身を除く): 18014522

約数列:

[1, 2, 7, 14, 17, 34, 49, 98, 119, 238, 289, 578, 743, 833, 1486, 1666, 2023, 4046, 5201, 10402, 12631, 14161, 25262, 28322, 36407, 72814, 88417, 176834, 214727, 429454, 618919, 1237838, 1503089, 3006178, 10521623, 21043246]

約数ペア:

[(1, 21043246), (2, 10521623), (7, 3006178), (14, 1503089), (17, 1237838), (34, 618919), (49, 429454), (98, 214727), (119, 176834), (238, 88417), (289, 72814), (578, 36407), (743, 28322), (833, 25262), (1486, 14161), (1666, 12631), (2023, 10402), (4046, 5201)]