21837844

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{197}}^1$

素因数の和:352

約数の個数: 48

約数和(自身を含む): 45505152

約数和(自身を除く): 23667308

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 107, 148, 197, 214, 259, 394, 428, 518, 749, 788, 1036, 1379, 1498, 2758, 2996, 3959, 5516, 7289, 7918, 14578, 15836, 21079, 27713, 29156, 42158, 51023, 55426, 84316, 102046, 110852, 147553, 204092, 295106, 590212, 779923, 1559846, 3119692, 5459461, 10918922, 21837844]

約数ペア:

[(1, 21837844), (2, 10918922), (4, 5459461), (7, 3119692), (14, 1559846), (28, 779923), (37, 590212), (74, 295106), (107, 204092), (148, 147553), (197, 110852), (214, 102046), (259, 84316), (394, 55426), (428, 51023), (518, 42158), (749, 29156), (788, 27713), (1036, 21079), (1379, 15836), (1498, 14578), (2758, 7918), (2996, 7289), (3959, 5516)]