18441969

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1571}}^1$

素因数の和:1637

約数の個数: 32

約数和(自身を含む): 30987264

約数和(自身を除く): 12545295

約数列:

[1, 3, 7, 13, 21, 39, 43, 91, 129, 273, 301, 559, 903, 1571, 1677, 3913, 4713, 10997, 11739, 20423, 32991, 61269, 67553, 142961, 202659, 428883, 472871, 878189, 1418613, 2634567, 6147323, 18441969]

約数ペア:

[(1, 18441969), (3, 6147323), (7, 2634567), (13, 1418613), (21, 878189), (39, 472871), (43, 428883), (91, 202659), (129, 142961), (273, 67553), (301, 61269), (559, 32991), (903, 20423), (1571, 11739), (1677, 10997), (3913, 4713)]