19740679

素因数分解:

$7^3\times {\mathrm{67}}^1\times {\mathrm{859}}^1$

素因数の和:947

約数の個数: 16

約数和(自身を含む): 23392000

約数和(自身を除く): 3651321

約数列:

[1, 7, 49, 67, 343, 469, 859, 3283, 6013, 22981, 42091, 57553, 294637, 402871, 2820097, 19740679]

約数ペア:

[(1, 19740679), (7, 2820097), (49, 402871), (67, 294637), (343, 57553), (469, 42091), (859, 22981), (3283, 6013)]