21685872

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1511}}^1$

素因数の和:1558

約数の個数: 80

約数和(自身を含む): 62995968

約数和(自身を除く): 41310096

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 23, 24, 26, 39, 46, 48, 52, 69, 78, 92, 104, 138, 156, 184, 208, 276, 299, 312, 368, 552, 598, 624, 897, 1104, 1196, 1511, 1794, 2392, 3022, 3588, 4533, 4784, 6044, 7176, 9066, 12088, 14352, 18132, 19643, 24176, 34753, 36264, 39286, 58929, 69506, 72528, 78572, 104259, 117858, 139012, 157144, 208518, 235716, 278024, 314288, 417036, 451789, 471432, 556048, 834072, 903578, 942864, 1355367, 1668144, 1807156, 2710734, 3614312, 5421468, 7228624, 10842936, 21685872]

約数ペア:

[(1, 21685872), (2, 10842936), (3, 7228624), (4, 5421468), (6, 3614312), (8, 2710734), (12, 1807156), (13, 1668144), (16, 1355367), (23, 942864), (24, 903578), (26, 834072), (39, 556048), (46, 471432), (48, 451789), (52, 417036), (69, 314288), (78, 278024), (92, 235716), (104, 208518), (138, 157144), (156, 139012), (184, 117858), (208, 104259), (276, 78572), (299, 72528), (312, 69506), (368, 58929), (552, 39286), (598, 36264), (624, 34753), (897, 24176), (1104, 19643), (1196, 18132), (1511, 14352), (1794, 12088), (2392, 9066), (3022, 7176), (3588, 6044), (4533, 4784)]