21777219

素因数分解:

$3^2\times {\mathrm{79}}^1\times {\mathrm{109}}^1\times {\mathrm{281}}^1$

素因数の和:475

約数の個数: 24

約数和(自身を含む): 32260800

約数和(自身を除く): 10483581

約数列:

[1, 3, 9, 79, 109, 237, 281, 327, 711, 843, 981, 2529, 8611, 22199, 25833, 30629, 66597, 77499, 91887, 199791, 275661, 2419691, 7259073, 21777219]

約数ペア:

[(1, 21777219), (3, 7259073), (9, 2419691), (79, 275661), (109, 199791), (237, 91887), (281, 77499), (327, 66597), (711, 30629), (843, 25833), (981, 22199), (2529, 8611)]