351388751

素因数分解:

$7^4\times {\mathrm{31}}^1\times {\mathrm{4721}}^1$

素因数の和:4780

約数の個数: 20

約数和(自身を含む): 423242304

約数和(自身を除く): 71853553

約数列:

[1, 7, 31, 49, 217, 343, 1519, 2401, 4721, 10633, 33047, 74431, 146351, 231329, 1024457, 1619303, 7171199, 11335121, 50198393, 351388751]

約数ペア:

[(1, 351388751), (7, 50198393), (31, 11335121), (49, 7171199), (217, 1619303), (343, 1024457), (1519, 231329), (2401, 146351), (4721, 74431), (10633, 33047)]