21246953

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{1567}}^1$

素因数の和:1736

約数の個数: 16

約数和(自身を含む): 26342400

約数和(自身を除く): 5095447

約数列:

[1, 7, 13, 91, 149, 1043, 1567, 1937, 10969, 13559, 20371, 142597, 233483, 1634381, 3035279, 21246953]

約数ペア:

[(1, 21246953), (7, 3035279), (13, 1634381), (91, 233483), (149, 142597), (1043, 20371), (1567, 13559), (1937, 10969)]