18645445

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{953}}^1$

素因数の和:1021

約数の個数: 32

約数和(自身を含む): 28207872

約数和(自身を除く): 9562427

約数列:

[1, 5, 7, 13, 35, 43, 65, 91, 215, 301, 455, 559, 953, 1505, 2795, 3913, 4765, 6671, 12389, 19565, 33355, 40979, 61945, 86723, 204895, 286853, 433615, 532727, 1434265, 2663635, 3729089, 18645445]

約数ペア:

[(1, 18645445), (5, 3729089), (7, 2663635), (13, 1434265), (35, 532727), (43, 433615), (65, 286853), (91, 204895), (215, 86723), (301, 61945), (455, 40979), (559, 33355), (953, 19565), (1505, 12389), (2795, 6671), (3913, 4765)]