18891609

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{733}}^1$

素因数の和:829

約数の個数: 24

約数和(自身を含む): 28115136

約数和(自身を除く): 9223527

約数列:

[1, 3, 11, 33, 71, 121, 213, 363, 733, 781, 2199, 2343, 8063, 8591, 24189, 25773, 52043, 88693, 156129, 266079, 572473, 1717419, 6297203, 18891609]

約数ペア:

[(1, 18891609), (3, 6297203), (11, 1717419), (33, 572473), (71, 266079), (121, 156129), (213, 88693), (363, 52043), (733, 25773), (781, 24189), (2199, 8591), (2343, 8063)]