21500679

素因数分解:

$3^1\times {\mathrm{157}}^1\times {\mathrm{191}}^1\times {\mathrm{239}}^1$

素因数の和:590

約数の個数: 16

約数和(自身を含む): 29122560

約数和(自身を除く): 7621881

約数列:

[1, 3, 157, 191, 239, 471, 573, 717, 29987, 37523, 45649, 89961, 112569, 136947, 7166893, 21500679]

約数ペア:

[(1, 21500679), (3, 7166893), (157, 136947), (191, 112569), (239, 89961), (471, 45649), (573, 37523), (717, 29987)]