21745766

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{2819}}^1$

素因数の和:2876

約数の個数: 32

約数和(自身を含む): 40608000

約数和(自身を除く): 18862234

約数列:

[1, 2, 7, 14, 19, 29, 38, 58, 133, 203, 266, 406, 551, 1102, 2819, 3857, 5638, 7714, 19733, 39466, 53561, 81751, 107122, 163502, 374927, 572257, 749854, 1144514, 1553269, 3106538, 10872883, 21745766]

約数ペア:

[(1, 21745766), (2, 10872883), (7, 3106538), (14, 1553269), (19, 1144514), (29, 749854), (38, 572257), (58, 374927), (133, 163502), (203, 107122), (266, 81751), (406, 53561), (551, 39466), (1102, 19733), (2819, 7714), (3857, 5638)]