21821877

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31489}}^1$

素因数の和:31513

約数の個数: 24

約数和(自身を含む): 39299520

約数和(自身を除く): 17477643

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 231, 693, 31489, 94467, 220423, 283401, 346379, 661269, 1039137, 1983807, 2424653, 3117411, 7273959, 21821877]

約数ペア:

[(1, 21821877), (3, 7273959), (7, 3117411), (9, 2424653), (11, 1983807), (21, 1039137), (33, 661269), (63, 346379), (77, 283401), (99, 220423), (231, 94467), (693, 31489)]