265440903

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{263}}^1\times {\mathrm{3697}}^1$

素因数の和:3983

約数の個数: 32

約数和(自身を含む): 437369856

約数和(自身を除く): 171928953

約数列:

[1, 3, 7, 13, 21, 39, 91, 263, 273, 789, 1841, 3419, 3697, 5523, 10257, 11091, 23933, 25879, 48061, 71799, 77637, 144183, 336427, 972311, 1009281, 2916933, 6806177, 12640043, 20418531, 37920129, 88480301, 265440903]

約数ペア:

[(1, 265440903), (3, 88480301), (7, 37920129), (13, 20418531), (21, 12640043), (39, 6806177), (91, 2916933), (263, 1009281), (273, 972311), (789, 336427), (1841, 144183), (3419, 77637), (3697, 71799), (5523, 48061), (10257, 25879), (11091, 23933)]