21151141

素因数分解:

${\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{461}}^1$

素因数の和:612

約数の個数: 16

約数和(自身を含む): 23905728

約数和(自身を除く): 2754587

約数列:

[1, 11, 43, 97, 461, 473, 1067, 4171, 5071, 19823, 44717, 45881, 218053, 491887, 1922831, 21151141]

約数ペア:

[(1, 21151141), (11, 1922831), (43, 491887), (97, 218053), (461, 45881), (473, 44717), (1067, 19823), (4171, 5071)]