21405300

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{10193}}^1$

素因数の和:10217

約数の個数: 72

約数和(自身を含む): 70787136

約数和(自身を除く): 49381836

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 50, 60, 70, 75, 84, 100, 105, 140, 150, 175, 210, 300, 350, 420, 525, 700, 1050, 2100, 10193, 20386, 30579, 40772, 50965, 61158, 71351, 101930, 122316, 142702, 152895, 203860, 214053, 254825, 285404, 305790, 356755, 428106, 509650, 611580, 713510, 764475, 856212, 1019300, 1070265, 1427020, 1528950, 1783775, 2140530, 3057900, 3567550, 4281060, 5351325, 7135100, 10702650, 21405300]

約数ペア:

[(1, 21405300), (2, 10702650), (3, 7135100), (4, 5351325), (5, 4281060), (6, 3567550), (7, 3057900), (10, 2140530), (12, 1783775), (14, 1528950), (15, 1427020), (20, 1070265), (21, 1019300), (25, 856212), (28, 764475), (30, 713510), (35, 611580), (42, 509650), (50, 428106), (60, 356755), (70, 305790), (75, 285404), (84, 254825), (100, 214053), (105, 203860), (140, 152895), (150, 142702), (175, 122316), (210, 101930), (300, 71351), (350, 61158), (420, 50965), (525, 40772), (700, 30579), (1050, 20386), (2100, 10193)]