21222242

素因数分解:

$2^1\times {\mathrm{97}}^1\times {\mathrm{139}}^1\times {\mathrm{787}}^1$

素因数の和:1025

約数の個数: 16

約数和(自身を含む): 32434080

約数和(自身を除く): 11211838

約数列:

[1, 2, 97, 139, 194, 278, 787, 1574, 13483, 26966, 76339, 109393, 152678, 218786, 10611121, 21222242]

約数ペア:

[(1, 21222242), (2, 10611121), (97, 218786), (139, 152678), (194, 109393), (278, 76339), (787, 26966), (1574, 13483)]