21480597

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{2531}}^1$

素因数の和:2601

約数の個数: 24

約数和(自身を含む): 33179328

約数和(自身を除く): 11698731

約数列:

[1, 3, 9, 23, 41, 69, 123, 207, 369, 943, 2531, 2829, 7593, 8487, 22779, 58213, 103771, 174639, 311313, 523917, 933939, 2386733, 7160199, 21480597]

約数ペア:

[(1, 21480597), (3, 7160199), (9, 2386733), (23, 933939), (41, 523917), (69, 311313), (123, 174639), (207, 103771), (369, 58213), (943, 22779), (2531, 8487), (2829, 7593)]