20981070

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{21193}}^1$

素因数の和:21217

約数の個数: 48

約数和(自身を含む): 59512752

約数和(自身を除く): 38531682

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990, 21193, 42386, 63579, 105965, 127158, 190737, 211930, 233123, 317895, 381474, 466246, 635790, 699369, 953685, 1165615, 1398738, 1907370, 2098107, 2331230, 3496845, 4196214, 6993690, 10490535, 20981070]

約数ペア:

[(1, 20981070), (2, 10490535), (3, 6993690), (5, 4196214), (6, 3496845), (9, 2331230), (10, 2098107), (11, 1907370), (15, 1398738), (18, 1165615), (22, 953685), (30, 699369), (33, 635790), (45, 466246), (55, 381474), (66, 317895), (90, 233123), (99, 211930), (110, 190737), (165, 127158), (198, 105965), (330, 63579), (495, 42386), (990, 21193)]