21277069779

素因数分解:

$3^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{2939}}^1\times {\mathrm{3347}}^1$

素因数の和:6399

約数の個数: 32

約数和(自身を含む): 32757903360

約数和(自身を除く): 11480833581

約数列:

[1, 3, 7, 21, 103, 309, 721, 2163, 2939, 3347, 8817, 10041, 20573, 23429, 61719, 70287, 302717, 344741, 908151, 1034223, 2119019, 2413187, 6357057, 7239561, 9836833, 29510499, 68857831, 206573493, 1013193799, 3039581397, 7092356593, 21277069779]

約数ペア:

[(1, 21277069779), (3, 7092356593), (7, 3039581397), (21, 1013193799), (103, 206573493), (309, 68857831), (721, 29510499), (2163, 9836833), (2939, 7239561), (3347, 6357057), (8817, 2413187), (10041, 2119019), (20573, 1034223), (23429, 908151), (61719, 344741), (70287, 302717)]