209407678

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{349}}^1\times {\mathrm{6977}}^1$

素因数の和:7371

約数の個数: 16

約数和(自身を含む): 322383600

約数和(自身を除く): 112975922

約数列:

[1, 2, 43, 86, 349, 698, 6977, 13954, 15007, 30014, 300011, 600022, 2434973, 4869946, 104703839, 209407678]

約数ペア:

[(1, 209407678), (2, 104703839), (43, 4869946), (86, 2434973), (349, 600022), (698, 300011), (6977, 30014), (13954, 15007)]