21006861124

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1\times {\mathrm{467}}^1$

素因数の和:745

約数の個数: 96

約数和(自身を含む): 40034082816

約数和(自身を除く): 19027221692

約数列:

[1, 2, 4, 23, 46, 47, 92, 94, 101, 103, 188, 202, 206, 404, 412, 467, 934, 1081, 1868, 2162, 2323, 2369, 4324, 4646, 4738, 4747, 4841, 9292, 9476, 9494, 9682, 10403, 10741, 18988, 19364, 20806, 21482, 21949, 41612, 42964, 43898, 47167, 48101, 87796, 94334, 96202, 109181, 111343, 188668, 192404, 218362, 222686, 239269, 436724, 445372, 478538, 488941, 504827, 957076, 977882, 1009654, 1084841, 1106323, 1955764, 2019308, 2169682, 2212646, 2216849, 2260747, 4339364, 4425292, 4433698, 4521494, 4858201, 8867396, 9042988, 9716402, 11245643, 19432804, 22491286, 44982572, 50987527, 51997181, 101975054, 103994362, 111738623, 203950108, 207988724, 223477246, 228335447, 446954492, 456670894, 913341788, 5251715281, 10503430562, 21006861124]

約数ペア:

[(1, 21006861124), (2, 10503430562), (4, 5251715281), (23, 913341788), (46, 456670894), (47, 446954492), (92, 228335447), (94, 223477246), (101, 207988724), (103, 203950108), (188, 111738623), (202, 103994362), (206, 101975054), (404, 51997181), (412, 50987527), (467, 44982572), (934, 22491286), (1081, 19432804), (1868, 11245643), (2162, 9716402), (2323, 9042988), (2369, 8867396), (4324, 4858201), (4646, 4521494), (4738, 4433698), (4747, 4425292), (4841, 4339364), (9292, 2260747), (9476, 2216849), (9494, 2212646), (9682, 2169682), (10403, 2019308), (10741, 1955764), (18988, 1106323), (19364, 1084841), (20806, 1009654), (21482, 977882), (21949, 957076), (41612, 504827), (42964, 488941), (43898, 478538), (47167, 445372), (48101, 436724), (87796, 239269), (94334, 222686), (96202, 218362), (109181, 192404), (111343, 188668)]