20658528

素因数分解:

$2^5\times 3^2\times {\mathrm{11}}^1\times {\mathrm{6521}}^1$

素因数の和:6548

約数の個数: 72

約数和(自身を含む): 64098216

約数和(自身を除く): 43439688

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 32, 33, 36, 44, 48, 66, 72, 88, 96, 99, 132, 144, 176, 198, 264, 288, 352, 396, 528, 792, 1056, 1584, 3168, 6521, 13042, 19563, 26084, 39126, 52168, 58689, 71731, 78252, 104336, 117378, 143462, 156504, 208672, 215193, 234756, 286924, 313008, 430386, 469512, 573848, 626016, 645579, 860772, 939024, 1147696, 1291158, 1721544, 1878048, 2295392, 2582316, 3443088, 5164632, 6886176, 10329264, 20658528]

約数ペア:

[(1, 20658528), (2, 10329264), (3, 6886176), (4, 5164632), (6, 3443088), (8, 2582316), (9, 2295392), (11, 1878048), (12, 1721544), (16, 1291158), (18, 1147696), (22, 939024), (24, 860772), (32, 645579), (33, 626016), (36, 573848), (44, 469512), (48, 430386), (66, 313008), (72, 286924), (88, 234756), (96, 215193), (99, 208672), (132, 156504), (144, 143462), (176, 117378), (198, 104336), (264, 78252), (288, 71731), (352, 58689), (396, 52168), (528, 39126), (792, 26084), (1056, 19563), (1584, 13042), (3168, 6521)]