20827856

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{10939}}^1$

素因数の和:10971

約数の個数: 40

約数和(自身を含む): 48836160

約数和(自身を除く): 28008304

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 56, 68, 112, 119, 136, 238, 272, 476, 952, 1904, 10939, 21878, 43756, 76573, 87512, 153146, 175024, 185963, 306292, 371926, 612584, 743852, 1225168, 1301741, 1487704, 2603482, 2975408, 5206964, 10413928, 20827856]

約数ペア:

[(1, 20827856), (2, 10413928), (4, 5206964), (7, 2975408), (8, 2603482), (14, 1487704), (16, 1301741), (17, 1225168), (28, 743852), (34, 612584), (56, 371926), (68, 306292), (112, 185963), (119, 175024), (136, 153146), (238, 87512), (272, 76573), (476, 43756), (952, 21878), (1904, 10939)]