21755342

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{283}}^1$

素因数の和:345

約数の個数: 48

約数和(自身を含む): 41850240

約数和(自身を除く): 20094898

約数列:

[1, 2, 7, 14, 17, 19, 34, 38, 119, 133, 238, 266, 283, 289, 323, 566, 578, 646, 1981, 2023, 2261, 3962, 4046, 4522, 4811, 5377, 5491, 9622, 10754, 10982, 33677, 37639, 38437, 67354, 75278, 76874, 81787, 91409, 163574, 182818, 572509, 639863, 1145018, 1279726, 1553953, 3107906, 10877671, 21755342]

約数ペア:

[(1, 21755342), (2, 10877671), (7, 3107906), (14, 1553953), (17, 1279726), (19, 1145018), (34, 639863), (38, 572509), (119, 182818), (133, 163574), (238, 91409), (266, 81787), (283, 76874), (289, 75278), (323, 67354), (566, 38437), (578, 37639), (646, 33677), (1981, 10982), (2023, 10754), (2261, 9622), (3962, 5491), (4046, 5377), (4522, 4811)]