21398349

素因数分解:

$3^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{6329}}^1$

素因数の和:6369

約数の個数: 24

約数和(自身を含む): 34637760

約数和(自身を除く): 13239411

約数列:

[1, 3, 7, 21, 23, 49, 69, 147, 161, 483, 1127, 3381, 6329, 18987, 44303, 132909, 145567, 310121, 436701, 930363, 1018969, 3056907, 7132783, 21398349]

約数ペア:

[(1, 21398349), (3, 7132783), (7, 3056907), (21, 1018969), (23, 930363), (49, 436701), (69, 310121), (147, 145567), (161, 132909), (483, 44303), (1127, 18987), (3381, 6329)]