21178124

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1231}}^1$

素因数の和:1286

約数の個数: 48

約数和(自身を含む): 44706816

約数和(自身を除く): 23528692

約数列:

[1, 2, 4, 11, 17, 22, 23, 34, 44, 46, 68, 92, 187, 253, 374, 391, 506, 748, 782, 1012, 1231, 1564, 2462, 4301, 4924, 8602, 13541, 17204, 20927, 27082, 28313, 41854, 54164, 56626, 83708, 113252, 230197, 311443, 460394, 481321, 622886, 920788, 962642, 1245772, 1925284, 5294531, 10589062, 21178124]

約数ペア:

[(1, 21178124), (2, 10589062), (4, 5294531), (11, 1925284), (17, 1245772), (22, 962642), (23, 920788), (34, 622886), (44, 481321), (46, 460394), (68, 311443), (92, 230197), (187, 113252), (253, 83708), (374, 56626), (391, 54164), (506, 41854), (748, 28313), (782, 27082), (1012, 20927), (1231, 17204), (1564, 13541), (2462, 8602), (4301, 4924)]