20352213

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{613}}^1$

素因数の和:674

約数の個数: 48

約数和(自身を含む): 36781056

約数和(自身を除く): 16428843

約数列:

[1, 3, 7, 9, 17, 21, 31, 51, 63, 93, 119, 153, 217, 279, 357, 527, 613, 651, 1071, 1581, 1839, 1953, 3689, 4291, 4743, 5517, 10421, 11067, 12873, 19003, 31263, 33201, 38619, 57009, 72947, 93789, 133021, 171027, 218841, 323051, 399063, 656523, 969153, 1197189, 2261357, 2907459, 6784071, 20352213]

約数ペア:

[(1, 20352213), (3, 6784071), (7, 2907459), (9, 2261357), (17, 1197189), (21, 969153), (31, 656523), (51, 399063), (63, 323051), (93, 218841), (119, 171027), (153, 133021), (217, 93789), (279, 72947), (357, 57009), (527, 38619), (613, 33201), (651, 31263), (1071, 19003), (1581, 12873), (1839, 11067), (1953, 10421), (3689, 5517), (4291, 4743)]