21126138

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{991}}^1$

素因数の和:1043

約数の個数: 64

約数和(自身を含む): 51425280

約数和(自身を除く): 30299142

約数列:

[1, 2, 3, 6, 11, 17, 19, 22, 33, 34, 38, 51, 57, 66, 102, 114, 187, 209, 323, 374, 418, 561, 627, 646, 969, 991, 1122, 1254, 1938, 1982, 2973, 3553, 5946, 7106, 10659, 10901, 16847, 18829, 21318, 21802, 32703, 33694, 37658, 50541, 56487, 65406, 101082, 112974, 185317, 207119, 320093, 370634, 414238, 555951, 621357, 640186, 960279, 1111902, 1242714, 1920558, 3521023, 7042046, 10563069, 21126138]

約数ペア:

[(1, 21126138), (2, 10563069), (3, 7042046), (6, 3521023), (11, 1920558), (17, 1242714), (19, 1111902), (22, 960279), (33, 640186), (34, 621357), (38, 555951), (51, 414238), (57, 370634), (66, 320093), (102, 207119), (114, 185317), (187, 112974), (209, 101082), (323, 65406), (374, 56487), (418, 50541), (561, 37658), (627, 33694), (646, 32703), (969, 21802), (991, 21318), (1122, 18829), (1254, 16847), (1938, 10901), (1982, 10659), (2973, 7106), (3553, 5946)]