20635468

素因数分解:

$2^2\times 7^2\times {\mathrm{127}}^1\times {\mathrm{829}}^1$

素因数の和:974

約数の個数: 36

約数和(自身を含む): 42389760

約数和(自身を除く): 21754292

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 127, 196, 254, 508, 829, 889, 1658, 1778, 3316, 3556, 5803, 6223, 11606, 12446, 23212, 24892, 40621, 81242, 105283, 162484, 210566, 421132, 736981, 1473962, 2947924, 5158867, 10317734, 20635468]

約数ペア:

[(1, 20635468), (2, 10317734), (4, 5158867), (7, 2947924), (14, 1473962), (28, 736981), (49, 421132), (98, 210566), (127, 162484), (196, 105283), (254, 81242), (508, 40621), (829, 24892), (889, 23212), (1658, 12446), (1778, 11606), (3316, 6223), (3556, 5803)]