21027952

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{761}}^1$

素因数の和:937

約数の個数: 40

約数和(自身を含む): 44787312

約数和(自身を除く): 23759360

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 157, 176, 314, 628, 761, 1256, 1522, 1727, 2512, 3044, 3454, 6088, 6908, 8371, 12176, 13816, 16742, 27632, 33484, 66968, 119477, 133936, 238954, 477908, 955816, 1314247, 1911632, 2628494, 5256988, 10513976, 21027952]

約数ペア:

[(1, 21027952), (2, 10513976), (4, 5256988), (8, 2628494), (11, 1911632), (16, 1314247), (22, 955816), (44, 477908), (88, 238954), (157, 133936), (176, 119477), (314, 66968), (628, 33484), (761, 27632), (1256, 16742), (1522, 13816), (1727, 12176), (2512, 8371), (3044, 6908), (3454, 6088)]