21749710

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{2027}}^1$

素因数の和:2100

約数の個数: 32

約数和(自身を含む): 41614560

約数和(自身を除く): 19864850

約数列:

[1, 2, 5, 10, 29, 37, 58, 74, 145, 185, 290, 370, 1073, 2027, 2146, 4054, 5365, 10135, 10730, 20270, 58783, 74999, 117566, 149998, 293915, 374995, 587830, 749990, 2174971, 4349942, 10874855, 21749710]

約数ペア:

[(1, 21749710), (2, 10874855), (5, 4349942), (10, 2174971), (29, 749990), (37, 587830), (58, 374995), (74, 293915), (145, 149998), (185, 117566), (290, 74999), (370, 58783), (1073, 20270), (2027, 10730), (2146, 10135), (4054, 5365)]