21375060

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{50893}}^1$

素因数の和:50912

約数の個数: 48

約数和(自身を含む): 68401536

約数和(自身を除く): 47026476

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, 50893, 101786, 152679, 203572, 254465, 305358, 356251, 508930, 610716, 712502, 763395, 1017860, 1068753, 1425004, 1526790, 1781255, 2137506, 3053580, 3562510, 4275012, 5343765, 7125020, 10687530, 21375060]

約数ペア:

[(1, 21375060), (2, 10687530), (3, 7125020), (4, 5343765), (5, 4275012), (6, 3562510), (7, 3053580), (10, 2137506), (12, 1781255), (14, 1526790), (15, 1425004), (20, 1068753), (21, 1017860), (28, 763395), (30, 712502), (35, 610716), (42, 508930), (60, 356251), (70, 305358), (84, 254465), (105, 203572), (140, 152679), (210, 101786), (420, 50893)]