21654776

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{823}}^1$

素因数の和:876

約数の個数: 64

約数和(自身を含む): 49835520

約数和(自身を除く): 28180744

約数列:

[1, 2, 4, 8, 11, 13, 22, 23, 26, 44, 46, 52, 88, 92, 104, 143, 184, 253, 286, 299, 506, 572, 598, 823, 1012, 1144, 1196, 1646, 2024, 2392, 3289, 3292, 6578, 6584, 9053, 10699, 13156, 18106, 18929, 21398, 26312, 36212, 37858, 42796, 72424, 75716, 85592, 117689, 151432, 208219, 235378, 246077, 416438, 470756, 492154, 832876, 941512, 984308, 1665752, 1968616, 2706847, 5413694, 10827388, 21654776]

約数ペア:

[(1, 21654776), (2, 10827388), (4, 5413694), (8, 2706847), (11, 1968616), (13, 1665752), (22, 984308), (23, 941512), (26, 832876), (44, 492154), (46, 470756), (52, 416438), (88, 246077), (92, 235378), (104, 208219), (143, 151432), (184, 117689), (253, 85592), (286, 75716), (299, 72424), (506, 42796), (572, 37858), (598, 36212), (823, 26312), (1012, 21398), (1144, 18929), (1196, 18106), (1646, 13156), (2024, 10699), (2392, 9053), (3289, 6584), (3292, 6578)]