20958714

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{181}}^1\times {\mathrm{919}}^1$

素因数の和:1115

約数の個数: 48

約数和(自身を含む): 52241280

約数和(自身を除く): 31282566

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 181, 362, 543, 919, 1086, 1267, 1629, 1838, 2534, 2757, 3258, 3801, 5514, 6433, 7602, 8271, 11403, 12866, 16542, 19299, 22806, 38598, 57897, 115794, 166339, 332678, 499017, 998034, 1164373, 1497051, 2328746, 2994102, 3493119, 6986238, 10479357, 20958714]

約数ペア:

[(1, 20958714), (2, 10479357), (3, 6986238), (6, 3493119), (7, 2994102), (9, 2328746), (14, 1497051), (18, 1164373), (21, 998034), (42, 499017), (63, 332678), (126, 166339), (181, 115794), (362, 57897), (543, 38598), (919, 22806), (1086, 19299), (1267, 16542), (1629, 12866), (1838, 11403), (2534, 8271), (2757, 7602), (3258, 6433), (3801, 5514)]