21697886

素因数分解:

$2^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{271}}^1$

素因数の和:349

約数の個数: 48

約数和(自身を含む): 40930560

約数和(自身を除く): 19232674

約数列:

[1, 2, 7, 14, 19, 38, 43, 49, 86, 98, 133, 266, 271, 301, 542, 602, 817, 931, 1634, 1862, 1897, 2107, 3794, 4214, 5149, 5719, 10298, 11438, 11653, 13279, 23306, 26558, 36043, 40033, 72086, 80066, 81571, 163142, 221407, 252301, 442814, 504602, 570997, 1141994, 1549849, 3099698, 10848943, 21697886]

約数ペア:

[(1, 21697886), (2, 10848943), (7, 3099698), (14, 1549849), (19, 1141994), (38, 570997), (43, 504602), (49, 442814), (86, 252301), (98, 221407), (133, 163142), (266, 81571), (271, 80066), (301, 72086), (542, 40033), (602, 36043), (817, 26558), (931, 23306), (1634, 13279), (1862, 11653), (1897, 11438), (2107, 10298), (3794, 5719), (4214, 5149)]