21885003

素因数分解:

$3^2\times 7^1\times {\mathrm{383}}^1\times {\mathrm{907}}^1$

素因数の和:1303

約数の個数: 24

約数和(自身を含む): 36261888

約数和(自身を除く): 14376885

約数列:

[1, 3, 7, 9, 21, 63, 383, 907, 1149, 2681, 2721, 3447, 6349, 8043, 8163, 19047, 24129, 57141, 347381, 1042143, 2431667, 3126429, 7295001, 21885003]

約数ペア:

[(1, 21885003), (3, 7295001), (7, 3126429), (9, 2431667), (21, 1042143), (63, 347381), (383, 57141), (907, 24129), (1149, 19047), (2681, 8163), (2721, 8043), (3447, 6349)]