21808503

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{829}}^1$

素因数の和:951

約数の個数: 24

約数和(自身を含む): 32801600

約数和(自身を除く): 10993097

約数列:

[1, 3, 9, 37, 79, 111, 237, 333, 711, 829, 2487, 2923, 7461, 8769, 26307, 30673, 65491, 92019, 196473, 276057, 589419, 2423167, 7269501, 21808503]

約数ペア:

[(1, 21808503), (3, 7269501), (9, 2423167), (37, 589419), (79, 276057), (111, 196473), (237, 92019), (333, 65491), (711, 30673), (829, 26307), (2487, 8769), (2923, 7461)]