21240864

素因数分解:

$2^5\times 3^2\times {\mathrm{131}}^1\times {\mathrm{563}}^1$

素因数の和:710

約数の個数: 72

約数和(自身を含む): 60972912

約数和(自身を除く): 39732048

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 131, 144, 262, 288, 393, 524, 563, 786, 1048, 1126, 1179, 1572, 1689, 2096, 2252, 2358, 3144, 3378, 4192, 4504, 4716, 5067, 6288, 6756, 9008, 9432, 10134, 12576, 13512, 18016, 18864, 20268, 27024, 37728, 40536, 54048, 73753, 81072, 147506, 162144, 221259, 295012, 442518, 590024, 663777, 885036, 1180048, 1327554, 1770072, 2360096, 2655108, 3540144, 5310216, 7080288, 10620432, 21240864]

約数ペア:

[(1, 21240864), (2, 10620432), (3, 7080288), (4, 5310216), (6, 3540144), (8, 2655108), (9, 2360096), (12, 1770072), (16, 1327554), (18, 1180048), (24, 885036), (32, 663777), (36, 590024), (48, 442518), (72, 295012), (96, 221259), (131, 162144), (144, 147506), (262, 81072), (288, 73753), (393, 54048), (524, 40536), (563, 37728), (786, 27024), (1048, 20268), (1126, 18864), (1179, 18016), (1572, 13512), (1689, 12576), (2096, 10134), (2252, 9432), (2358, 9008), (3144, 6756), (3378, 6288), (4192, 5067), (4504, 4716)]