20281682

素因数分解:

$2^1\times {\mathrm{131}}^1\times {\mathrm{199}}^1\times {\mathrm{389}}^1$

素因数の和:721

約数の個数: 16

約数和(自身を含む): 30888000

約数和(自身を除く): 10606318

約数列:

[1, 2, 131, 199, 262, 389, 398, 778, 26069, 50959, 52138, 77411, 101918, 154822, 10140841, 20281682]

約数ペア:

[(1, 20281682), (2, 10140841), (131, 154822), (199, 101918), (262, 77411), (389, 52138), (398, 50959), (778, 26069)]