21233565

素因数分解:

$3^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{1213}}^1$

素因数の和:1613

約数の個数: 24

約数和(自身を含む): 36929880

約数和(自身を除く): 15696315

約数列:

[1, 3, 5, 9, 15, 45, 389, 1167, 1213, 1945, 3501, 3639, 5835, 6065, 10917, 17505, 18195, 54585, 471857, 1415571, 2359285, 4246713, 7077855, 21233565]

約数ペア:

[(1, 21233565), (3, 7077855), (5, 4246713), (9, 2359285), (15, 1415571), (45, 471857), (389, 54585), (1167, 18195), (1213, 17505), (1945, 10917), (3501, 6065), (3639, 5835)]