21006120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{193}}^1\times {\mathrm{907}}^1$

素因数の和:1114

約数の個数: 64

約数和(自身を含む): 63414720

約数和(自身を除く): 42408600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 193, 386, 579, 772, 907, 965, 1158, 1544, 1814, 1930, 2316, 2721, 2895, 3628, 3860, 4535, 4632, 5442, 5790, 7256, 7720, 9070, 10884, 11580, 13605, 18140, 21768, 23160, 27210, 36280, 54420, 108840, 175051, 350102, 525153, 700204, 875255, 1050306, 1400408, 1750510, 2100612, 2625765, 3501020, 4201224, 5251530, 7002040, 10503060, 21006120]

約数ペア:

[(1, 21006120), (2, 10503060), (3, 7002040), (4, 5251530), (5, 4201224), (6, 3501020), (8, 2625765), (10, 2100612), (12, 1750510), (15, 1400408), (20, 1050306), (24, 875255), (30, 700204), (40, 525153), (60, 350102), (120, 175051), (193, 108840), (386, 54420), (579, 36280), (772, 27210), (907, 23160), (965, 21768), (1158, 18140), (1544, 13605), (1814, 11580), (1930, 10884), (2316, 9070), (2721, 7720), (2895, 7256), (3628, 5790), (3860, 5442), (4535, 4632)]