21104172

素因数分解:

$2^2\times 3^3\times {\mathrm{263}}^1\times {\mathrm{743}}^1$

素因数の和:1019

約数の個数: 48

約数和(自身を含む): 54996480

約数和(自身を除く): 33892308

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 263, 526, 743, 789, 1052, 1486, 1578, 2229, 2367, 2972, 3156, 4458, 4734, 6687, 7101, 8916, 9468, 13374, 14202, 20061, 26748, 28404, 40122, 80244, 195409, 390818, 586227, 781636, 1172454, 1758681, 2344908, 3517362, 5276043, 7034724, 10552086, 21104172]

約数ペア:

[(1, 21104172), (2, 10552086), (3, 7034724), (4, 5276043), (6, 3517362), (9, 2344908), (12, 1758681), (18, 1172454), (27, 781636), (36, 586227), (54, 390818), (108, 195409), (263, 80244), (526, 40122), (743, 28404), (789, 26748), (1052, 20061), (1486, 14202), (1578, 13374), (2229, 9468), (2367, 8916), (2972, 7101), (3156, 6687), (4458, 4734)]