19998923

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{683}}^1$

素因数の和:826

約数の個数: 16

約数和(自身を含む): 23639040

約数和(自身を除く): 3640117

約数列:

[1, 7, 47, 89, 329, 623, 683, 4183, 4781, 29281, 32101, 60787, 224707, 425509, 2856989, 19998923]

約数ペア:

[(1, 19998923), (7, 2856989), (47, 425509), (89, 224707), (329, 60787), (623, 32101), (683, 29281), (4183, 4781)]