667079679

素因数分解:

$3^1\times 7^2\times {\mathrm{227}}^1\times {\mathrm{19991}}^1$

素因数の和:20235

約数の個数: 24

約数和(自身を含む): 1039264128

約数和(自身を除く): 372184449

約数列:

[1, 3, 7, 21, 49, 147, 227, 681, 1589, 4767, 11123, 19991, 33369, 59973, 139937, 419811, 979559, 2938677, 4537957, 13613871, 31765699, 95297097, 222359893, 667079679]

約数ペア:

[(1, 667079679), (3, 222359893), (7, 95297097), (21, 31765699), (49, 13613871), (147, 4537957), (227, 2938677), (681, 979559), (1589, 419811), (4767, 139937), (11123, 59973), (19991, 33369)]