16180857

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1$

素因数の和:251

約数の個数: 64

約数和(自身を含む): 30750720

約数和(自身を除く): 14569863

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 43, 63, 77, 99, 129, 181, 189, 231, 297, 301, 387, 473, 543, 693, 903, 1161, 1267, 1419, 1629, 1991, 2079, 2709, 3311, 3801, 4257, 4887, 5973, 7783, 8127, 9933, 11403, 12771, 13937, 17919, 23349, 29799, 34209, 41811, 53757, 54481, 70047, 85613, 89397, 125433, 163443, 210141, 256839, 376299, 490329, 599291, 770517, 1470987, 1797873, 2311551, 5393619, 16180857]

約数ペア:

[(1, 16180857), (3, 5393619), (7, 2311551), (9, 1797873), (11, 1470987), (21, 770517), (27, 599291), (33, 490329), (43, 376299), (63, 256839), (77, 210141), (99, 163443), (129, 125433), (181, 89397), (189, 85613), (231, 70047), (297, 54481), (301, 53757), (387, 41811), (473, 34209), (543, 29799), (693, 23349), (903, 17919), (1161, 13937), (1267, 12771), (1419, 11403), (1629, 9933), (1991, 8127), (2079, 7783), (2709, 5973), (3311, 4887), (3801, 4257)]