21249060

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{50593}}^1$

素因数の和:50612

約数の個数: 48

約数和(自身を含む): 67998336

約数和(自身を除く): 46749276

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, 50593, 101186, 151779, 202372, 252965, 303558, 354151, 505930, 607116, 708302, 758895, 1011860, 1062453, 1416604, 1517790, 1770755, 2124906, 3035580, 3541510, 4249812, 5312265, 7083020, 10624530, 21249060]

約数ペア:

[(1, 21249060), (2, 10624530), (3, 7083020), (4, 5312265), (5, 4249812), (6, 3541510), (7, 3035580), (10, 2124906), (12, 1770755), (14, 1517790), (15, 1416604), (20, 1062453), (21, 1011860), (28, 758895), (30, 708302), (35, 607116), (42, 505930), (60, 354151), (70, 303558), (84, 252965), (105, 202372), (140, 151779), (210, 101186), (420, 50593)]