21751070

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{2503}}^1$

素因数の和:2600

約数の個数: 32

約数和(自身を含む): 43269120

約数和(自身を除く): 21518050

約数列:

[1, 2, 5, 10, 11, 22, 55, 79, 110, 158, 395, 790, 869, 1738, 2503, 4345, 5006, 8690, 12515, 25030, 27533, 55066, 137665, 197737, 275330, 395474, 988685, 1977370, 2175107, 4350214, 10875535, 21751070]

約数ペア:

[(1, 21751070), (2, 10875535), (5, 4350214), (10, 2175107), (11, 1977370), (22, 988685), (55, 395474), (79, 275330), (110, 197737), (158, 137665), (395, 55066), (790, 27533), (869, 25030), (1738, 12515), (2503, 8690), (4345, 5006)]