20039628

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{173}}^1\times {\mathrm{197}}^1$

素因数の和:391

約数の個数: 72

約数和(自身を含む): 54985392

約数和(自身を除く): 34945764

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 173, 196, 197, 294, 346, 394, 519, 588, 591, 692, 788, 1038, 1182, 1211, 1379, 2076, 2364, 2422, 2758, 3633, 4137, 4844, 5516, 7266, 8274, 8477, 9653, 14532, 16548, 16954, 19306, 25431, 28959, 33908, 34081, 38612, 50862, 57918, 68162, 101724, 102243, 115836, 136324, 204486, 238567, 408972, 477134, 715701, 954268, 1431402, 1669969, 2862804, 3339938, 5009907, 6679876, 10019814, 20039628]

約数ペア:

[(1, 20039628), (2, 10019814), (3, 6679876), (4, 5009907), (6, 3339938), (7, 2862804), (12, 1669969), (14, 1431402), (21, 954268), (28, 715701), (42, 477134), (49, 408972), (84, 238567), (98, 204486), (147, 136324), (173, 115836), (196, 102243), (197, 101724), (294, 68162), (346, 57918), (394, 50862), (519, 38612), (588, 34081), (591, 33908), (692, 28959), (788, 25431), (1038, 19306), (1182, 16954), (1211, 16548), (1379, 14532), (2076, 9653), (2364, 8477), (2422, 8274), (2758, 7266), (3633, 5516), (4137, 4844)]