216386919

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{73079}}^1$

素因数の和:73139

約数の個数: 24

約数和(自身を含む): 364815360

約数和(自身を除く): 148428441

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 329, 423, 987, 2961, 73079, 219237, 511553, 657711, 1534659, 3434713, 4603977, 10304139, 24042991, 30912417, 72128973, 216386919]

約数ペア:

[(1, 216386919), (3, 72128973), (7, 30912417), (9, 24042991), (21, 10304139), (47, 4603977), (63, 3434713), (141, 1534659), (329, 657711), (423, 511553), (987, 219237), (2961, 73079)]