21551117973

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{446387}}^1$

素因数の和:446438

約数の個数: 48

約数和(自身を含む): 37996546560

約数和(自身を除く): 16445428587

約数列:

[1, 3, 7, 11, 19, 21, 33, 57, 77, 121, 133, 209, 231, 363, 399, 627, 847, 1463, 2299, 2541, 4389, 6897, 16093, 48279, 446387, 1339161, 3124709, 4910257, 8481353, 9374127, 14730771, 25444059, 34371799, 54012827, 59369471, 93294883, 103115397, 162038481, 178108413, 279884649, 378089789, 653064181, 1026243713, 1134269367, 1959192543, 3078731139, 7183705991, 21551117973]

約数ペア:

[(1, 21551117973), (3, 7183705991), (7, 3078731139), (11, 1959192543), (19, 1134269367), (21, 1026243713), (33, 653064181), (57, 378089789), (77, 279884649), (121, 178108413), (133, 162038481), (209, 103115397), (231, 93294883), (363, 59369471), (399, 54012827), (627, 34371799), (847, 25444059), (1463, 14730771), (2299, 9374127), (2541, 8481353), (4389, 4910257), (6897, 3124709), (16093, 1339161), (48279, 446387)]