21041504

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{23}}^2\times {\mathrm{113}}^1$

素因数の和:180

約数の個数: 72

約数和(自身を含む): 47659752

約数和(自身を除く): 26618248

約数列:

[1, 2, 4, 8, 11, 16, 22, 23, 32, 44, 46, 88, 92, 113, 176, 184, 226, 253, 352, 368, 452, 506, 529, 736, 904, 1012, 1058, 1243, 1808, 2024, 2116, 2486, 2599, 3616, 4048, 4232, 4972, 5198, 5819, 8096, 8464, 9944, 10396, 11638, 16928, 19888, 20792, 23276, 28589, 39776, 41584, 46552, 57178, 59777, 83168, 93104, 114356, 119554, 186208, 228712, 239108, 457424, 478216, 657547, 914848, 956432, 1315094, 1912864, 2630188, 5260376, 10520752, 21041504]

約数ペア:

[(1, 21041504), (2, 10520752), (4, 5260376), (8, 2630188), (11, 1912864), (16, 1315094), (22, 956432), (23, 914848), (32, 657547), (44, 478216), (46, 457424), (88, 239108), (92, 228712), (113, 186208), (176, 119554), (184, 114356), (226, 93104), (253, 83168), (352, 59777), (368, 57178), (452, 46552), (506, 41584), (529, 39776), (736, 28589), (904, 23276), (1012, 20792), (1058, 19888), (1243, 16928), (1808, 11638), (2024, 10396), (2116, 9944), (2486, 8464), (2599, 8096), (3616, 5819), (4048, 5198), (4232, 4972)]