1821984747

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{21017}}^1$

素因数の和:21139

約数の個数: 32

約数和(自身を含む): 2760251904

約数和(自身を除く): 938267157

約数列:

[1, 3, 11, 33, 37, 71, 111, 213, 407, 781, 1221, 2343, 2627, 7881, 21017, 28897, 63051, 86691, 231187, 693561, 777629, 1492207, 2332887, 4476621, 8553919, 16414277, 25661757, 49242831, 55211659, 165634977, 607328249, 1821984747]

約数ペア:

[(1, 1821984747), (3, 607328249), (11, 165634977), (33, 55211659), (37, 49242831), (71, 25661757), (111, 16414277), (213, 8553919), (407, 4476621), (781, 2332887), (1221, 1492207), (2343, 777629), (2627, 693561), (7881, 231187), (21017, 86691), (28897, 63051)]