21106428

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{6791}}^1$

素因数の和:6842

約数の個数: 48

約数和(自身を含む): 57813504

約数和(自身を除く): 36707076

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 37, 42, 74, 84, 111, 148, 222, 259, 444, 518, 777, 1036, 1554, 3108, 6791, 13582, 20373, 27164, 40746, 47537, 81492, 95074, 142611, 190148, 251267, 285222, 502534, 570444, 753801, 1005068, 1507602, 1758869, 3015204, 3517738, 5276607, 7035476, 10553214, 21106428]

約数ペア:

[(1, 21106428), (2, 10553214), (3, 7035476), (4, 5276607), (6, 3517738), (7, 3015204), (12, 1758869), (14, 1507602), (21, 1005068), (28, 753801), (37, 570444), (42, 502534), (74, 285222), (84, 251267), (111, 190148), (148, 142611), (222, 95074), (259, 81492), (444, 47537), (518, 40746), (777, 27164), (1036, 20373), (1554, 13582), (3108, 6791)]