21139230

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{2341}}^1$

素因数の和:2401

約数の個数: 64

約数和(自身を含む): 59355648

約数和(自身を除く): 38216418

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 43, 70, 86, 105, 129, 210, 215, 258, 301, 430, 602, 645, 903, 1290, 1505, 1806, 2341, 3010, 4515, 4682, 7023, 9030, 11705, 14046, 16387, 23410, 32774, 35115, 49161, 70230, 81935, 98322, 100663, 163870, 201326, 245805, 301989, 491610, 503315, 603978, 704641, 1006630, 1409282, 1509945, 2113923, 3019890, 3523205, 4227846, 7046410, 10569615, 21139230]

約数ペア:

[(1, 21139230), (2, 10569615), (3, 7046410), (5, 4227846), (6, 3523205), (7, 3019890), (10, 2113923), (14, 1509945), (15, 1409282), (21, 1006630), (30, 704641), (35, 603978), (42, 503315), (43, 491610), (70, 301989), (86, 245805), (105, 201326), (129, 163870), (210, 100663), (215, 98322), (258, 81935), (301, 70230), (430, 49161), (602, 35115), (645, 32774), (903, 23410), (1290, 16387), (1505, 14046), (1806, 11705), (2341, 9030), (3010, 7023), (4515, 4682)]