21143220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{50341}}^1$

素因数の和:50360

約数の個数: 48

約数和(自身を含む): 67659648

約数和(自身を除く): 46516428

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 50341, 100682, 151023, 201364, 251705, 302046, 352387, 503410, 604092, 704774, 755115, 1006820, 1057161, 1409548, 1510230, 1761935, 2114322, 3020460, 3523870, 4228644, 5285805, 7047740, 10571610, 21143220]

約数ペア:

[(1, 21143220), (2, 10571610), (3, 7047740), (4, 5285805), (5, 4228644), (6, 3523870), (7, 3020460), (10, 2114322), (12, 1761935), (14, 1510230), (15, 1409548), (20, 1057161), (21, 1006820), (28, 755115), (30, 704774), (35, 604092), (42, 503410), (60, 352387), (70, 302046), (84, 251705), (105, 201364), (140, 151023), (210, 100682), (420, 50341)]