21093525

素因数分解:

$3^2\times 5^2\times {\mathrm{241}}^1\times {\mathrm{389}}^1$

素因数の和:646

約数の個数: 36

約数和(自身を含む): 38035140

約数和(自身を除く): 16941615

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 241, 389, 723, 1167, 1205, 1945, 2169, 3501, 3615, 5835, 6025, 9725, 10845, 17505, 18075, 29175, 54225, 87525, 93749, 281247, 468745, 843741, 1406235, 2343725, 4218705, 7031175, 21093525]

約数ペア:

[(1, 21093525), (3, 7031175), (5, 4218705), (9, 2343725), (15, 1406235), (25, 843741), (45, 468745), (75, 281247), (225, 93749), (241, 87525), (389, 54225), (723, 29175), (1167, 18075), (1205, 17505), (1945, 10845), (2169, 9725), (3501, 6025), (3615, 5835)]