21969387

素因数分解:

$3^5\times {\mathrm{11}}^1\times {\mathrm{8219}}^1$

素因数の和:8245

約数の個数: 24

約数和(自身を含む): 35904960

約数和(自身を除く): 13935573

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 243, 297, 891, 2673, 8219, 24657, 73971, 90409, 221913, 271227, 665739, 813681, 1997217, 2441043, 7323129, 21969387]

約数ペア:

[(1, 21969387), (3, 7323129), (9, 2441043), (11, 1997217), (27, 813681), (33, 665739), (81, 271227), (99, 221913), (243, 90409), (297, 73971), (891, 24657), (2673, 8219)]