21847007

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{2377}}^1$

素因数の和:2498

約数の個数: 16

約数和(自身を含む): 27166272

約数和(自身を除く): 5319265

約数列:

[1, 7, 13, 91, 101, 707, 1313, 2377, 9191, 16639, 30901, 216307, 240077, 1680539, 3121001, 21847007]

約数ペア:

[(1, 21847007), (7, 3121001), (13, 1680539), (91, 240077), (101, 216307), (707, 30901), (1313, 16639), (2377, 9191)]