18006443

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{491}}^1$

素因数の和:555

約数の個数: 24

約数和(自身を含む): 23049216

約数和(自身を除く): 5042773

約数列:

[1, 7, 13, 31, 91, 169, 217, 403, 491, 1183, 2821, 3437, 5239, 6383, 15221, 36673, 44681, 82979, 106547, 197873, 580853, 1385111, 2572349, 18006443]

約数ペア:

[(1, 18006443), (7, 2572349), (13, 1385111), (31, 580853), (91, 197873), (169, 106547), (217, 82979), (403, 44681), (491, 36673), (1183, 15221), (2821, 6383), (3437, 5239)]