21992202004

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{42017}}^1$

素因数の和:42208

約数の個数: 48

約数和(自身を含む): 41507061120

約数和(自身を除く): 19514859116

約数列:

[1, 2, 4, 19, 38, 71, 76, 97, 142, 194, 284, 388, 1349, 1843, 2698, 3686, 5396, 6887, 7372, 13774, 27548, 42017, 84034, 130853, 168068, 261706, 523412, 798323, 1596646, 2983207, 3193292, 4075649, 5966414, 8151298, 11932828, 16302596, 56680933, 77437331, 113361866, 154874662, 226723732, 289371079, 309749324, 578742158, 1157484316, 5498050501, 10996101002, 21992202004]

約数ペア:

[(1, 21992202004), (2, 10996101002), (4, 5498050501), (19, 1157484316), (38, 578742158), (71, 309749324), (76, 289371079), (97, 226723732), (142, 154874662), (194, 113361866), (284, 77437331), (388, 56680933), (1349, 16302596), (1843, 11932828), (2698, 8151298), (3686, 5966414), (5396, 4075649), (6887, 3193292), (7372, 2983207), (13774, 1596646), (27548, 798323), (42017, 523412), (84034, 261706), (130853, 168068)]