21979536

素因数分解:

$2^4\times 3^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{463}}^1$

素因数の和:540

約数の個数: 80

約数和(自身を含む): 60758016

約数和(自身を除く): 38778480

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 23, 24, 43, 46, 48, 69, 86, 92, 129, 138, 172, 184, 258, 276, 344, 368, 463, 516, 552, 688, 926, 989, 1032, 1104, 1389, 1852, 1978, 2064, 2778, 2967, 3704, 3956, 5556, 5934, 7408, 7912, 10649, 11112, 11868, 15824, 19909, 21298, 22224, 23736, 31947, 39818, 42596, 47472, 59727, 63894, 79636, 85192, 119454, 127788, 159272, 170384, 238908, 255576, 318544, 457907, 477816, 511152, 915814, 955632, 1373721, 1831628, 2747442, 3663256, 5494884, 7326512, 10989768, 21979536]

約数ペア:

[(1, 21979536), (2, 10989768), (3, 7326512), (4, 5494884), (6, 3663256), (8, 2747442), (12, 1831628), (16, 1373721), (23, 955632), (24, 915814), (43, 511152), (46, 477816), (48, 457907), (69, 318544), (86, 255576), (92, 238908), (129, 170384), (138, 159272), (172, 127788), (184, 119454), (258, 85192), (276, 79636), (344, 63894), (368, 59727), (463, 47472), (516, 42596), (552, 39818), (688, 31947), (926, 23736), (989, 22224), (1032, 21298), (1104, 19909), (1389, 15824), (1852, 11868), (1978, 11112), (2064, 10649), (2778, 7912), (2967, 7408), (3704, 5934), (3956, 5556)]