21167650

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{197}}^1\times {\mathrm{307}}^1$

素因数の和:523

約数の個数: 48

約数和(自身を含む): 45372096

約数和(自身を除く): 24204446

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 175, 197, 307, 350, 394, 614, 985, 1379, 1535, 1970, 2149, 2758, 3070, 4298, 4925, 6895, 7675, 9850, 10745, 13790, 15350, 21490, 34475, 53725, 60479, 68950, 107450, 120958, 302395, 423353, 604790, 846706, 1511975, 2116765, 3023950, 4233530, 10583825, 21167650]

約数ペア:

[(1, 21167650), (2, 10583825), (5, 4233530), (7, 3023950), (10, 2116765), (14, 1511975), (25, 846706), (35, 604790), (50, 423353), (70, 302395), (175, 120958), (197, 107450), (307, 68950), (350, 60479), (394, 53725), (614, 34475), (985, 21490), (1379, 15350), (1535, 13790), (1970, 10745), (2149, 9850), (2758, 7675), (3070, 6895), (4298, 4925)]