21406528

素因数分解:

$2^6\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2339}}^1$

素因数の和:2375

約数の個数: 56

約数和(自身を含む): 49926240

約数和(自身を除く): 28519712

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 32, 44, 52, 64, 88, 104, 143, 176, 208, 286, 352, 416, 572, 704, 832, 1144, 2288, 2339, 4576, 4678, 9152, 9356, 18712, 25729, 30407, 37424, 51458, 60814, 74848, 102916, 121628, 149696, 205832, 243256, 334477, 411664, 486512, 668954, 823328, 973024, 1337908, 1646656, 1946048, 2675816, 5351632, 10703264, 21406528]

約数ペア:

[(1, 21406528), (2, 10703264), (4, 5351632), (8, 2675816), (11, 1946048), (13, 1646656), (16, 1337908), (22, 973024), (26, 823328), (32, 668954), (44, 486512), (52, 411664), (64, 334477), (88, 243256), (104, 205832), (143, 149696), (176, 121628), (208, 102916), (286, 74848), (352, 60814), (416, 51458), (572, 37424), (704, 30407), (832, 25729), (1144, 18712), (2288, 9356), (2339, 9152), (4576, 4678)]