21620277

素因数分解:

$3^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{2243}}^1$

素因数の和:2279

約数の個数: 40

約数和(自身を含む): 39099456

約数和(自身を除く): 17479179

約数列:

[1, 3, 7, 9, 17, 21, 27, 51, 63, 81, 119, 153, 189, 357, 459, 567, 1071, 1377, 2243, 3213, 6729, 9639, 15701, 20187, 38131, 47103, 60561, 114393, 141309, 181683, 266917, 343179, 423927, 800751, 1029537, 1271781, 2402253, 3088611, 7206759, 21620277]

約数ペア:

[(1, 21620277), (3, 7206759), (7, 3088611), (9, 2402253), (17, 1271781), (21, 1029537), (27, 800751), (51, 423927), (63, 343179), (81, 266917), (119, 181683), (153, 141309), (189, 114393), (357, 60561), (459, 47103), (567, 38131), (1071, 20187), (1377, 15701), (2243, 9639), (3213, 6729)]