21485464

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2683}}^1$

素因数の和:2720

約数の個数: 64

約数和(自身を含む): 54109440

約数和(自身を除く): 32623976

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 22, 26, 28, 44, 52, 56, 77, 88, 91, 104, 143, 154, 182, 286, 308, 364, 572, 616, 728, 1001, 1144, 2002, 2683, 4004, 5366, 8008, 10732, 18781, 21464, 29513, 34879, 37562, 59026, 69758, 75124, 118052, 139516, 150248, 206591, 236104, 244153, 279032, 383669, 413182, 488306, 767338, 826364, 976612, 1534676, 1652728, 1953224, 2685683, 3069352, 5371366, 10742732, 21485464]

約数ペア:

[(1, 21485464), (2, 10742732), (4, 5371366), (7, 3069352), (8, 2685683), (11, 1953224), (13, 1652728), (14, 1534676), (22, 976612), (26, 826364), (28, 767338), (44, 488306), (52, 413182), (56, 383669), (77, 279032), (88, 244153), (91, 236104), (104, 206591), (143, 150248), (154, 139516), (182, 118052), (286, 75124), (308, 69758), (364, 59026), (572, 37562), (616, 34879), (728, 29513), (1001, 21464), (1144, 18781), (2002, 10732), (2683, 8008), (4004, 5366)]