199974915

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{634841}}^1$

素因数の和:634859

約数の個数: 24

約数和(自身を含む): 396141408

約数和(自身を除く): 196166493

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 634841, 1904523, 3174205, 4443887, 5713569, 9522615, 13331661, 22219435, 28567845, 39994983, 66658305, 199974915]

約数ペア:

[(1, 199974915), (3, 66658305), (5, 39994983), (7, 28567845), (9, 22219435), (15, 13331661), (21, 9522615), (35, 5713569), (45, 4443887), (63, 3174205), (105, 1904523), (315, 634841)]