21052512

素因数分解:

$2^5\times 3^2\times {\mathrm{13}}^1\times {\mathrm{5623}}^1$

素因数の和:5652

約数の個数: 72

約数和(自身を含む): 64484784

約数和(自身を除く): 43432272

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 32, 36, 39, 48, 52, 72, 78, 96, 104, 117, 144, 156, 208, 234, 288, 312, 416, 468, 624, 936, 1248, 1872, 3744, 5623, 11246, 16869, 22492, 33738, 44984, 50607, 67476, 73099, 89968, 101214, 134952, 146198, 179936, 202428, 219297, 269904, 292396, 404856, 438594, 539808, 584792, 657891, 809712, 877188, 1169584, 1315782, 1619424, 1754376, 2339168, 2631564, 3508752, 5263128, 7017504, 10526256, 21052512]

約数ペア:

[(1, 21052512), (2, 10526256), (3, 7017504), (4, 5263128), (6, 3508752), (8, 2631564), (9, 2339168), (12, 1754376), (13, 1619424), (16, 1315782), (18, 1169584), (24, 877188), (26, 809712), (32, 657891), (36, 584792), (39, 539808), (48, 438594), (52, 404856), (72, 292396), (78, 269904), (96, 219297), (104, 202428), (117, 179936), (144, 146198), (156, 134952), (208, 101214), (234, 89968), (288, 73099), (312, 67476), (416, 50607), (468, 44984), (624, 33738), (936, 22492), (1248, 16869), (1872, 11246), (3744, 5623)]