21045360

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{12527}}^1$

素因数の和:12550

約数の個数: 80

約数和(自身を含む): 74566656

約数和(自身を除く): 53521296

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 12527, 25054, 37581, 50108, 62635, 75162, 87689, 100216, 125270, 150324, 175378, 187905, 200432, 250540, 263067, 300648, 350756, 375810, 438445, 501080, 526134, 601296, 701512, 751620, 876890, 1002160, 1052268, 1315335, 1403024, 1503240, 1753780, 2104536, 2630670, 3006480, 3507560, 4209072, 5261340, 7015120, 10522680, 21045360]

約数ペア:

[(1, 21045360), (2, 10522680), (3, 7015120), (4, 5261340), (5, 4209072), (6, 3507560), (7, 3006480), (8, 2630670), (10, 2104536), (12, 1753780), (14, 1503240), (15, 1403024), (16, 1315335), (20, 1052268), (21, 1002160), (24, 876890), (28, 751620), (30, 701512), (35, 601296), (40, 526134), (42, 501080), (48, 438445), (56, 375810), (60, 350756), (70, 300648), (80, 263067), (84, 250540), (105, 200432), (112, 187905), (120, 175378), (140, 150324), (168, 125270), (210, 100216), (240, 87689), (280, 75162), (336, 62635), (420, 50108), (560, 37581), (840, 25054), (1680, 12527)]