21062789

素因数分解:

${\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1\times {\mathrm{181}}^1$

素因数の和:412

約数の個数: 16

約数和(自身を含む): 23587200

約数和(自身を除く): 2524411

約数列:

[1, 11, 71, 149, 181, 781, 1639, 1991, 10579, 12851, 26969, 116369, 141361, 296659, 1914799, 21062789]

約数ペア:

[(1, 21062789), (11, 1914799), (71, 296659), (149, 141361), (181, 116369), (781, 26969), (1639, 12851), (1991, 10579)]