21479392

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{439}}^1$

素因数の和:599

約数の個数: 48

約数和(自身を含む): 46569600

約数和(自身を除く): 25090208

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 88, 139, 176, 278, 352, 439, 556, 878, 1112, 1529, 1756, 2224, 3058, 3512, 4448, 4829, 6116, 7024, 9658, 12232, 14048, 19316, 24464, 38632, 48928, 61021, 77264, 122042, 154528, 244084, 488168, 671231, 976336, 1342462, 1952672, 2684924, 5369848, 10739696, 21479392]

約数ペア:

[(1, 21479392), (2, 10739696), (4, 5369848), (8, 2684924), (11, 1952672), (16, 1342462), (22, 976336), (32, 671231), (44, 488168), (88, 244084), (139, 154528), (176, 122042), (278, 77264), (352, 61021), (439, 48928), (556, 38632), (878, 24464), (1112, 19316), (1529, 14048), (1756, 12232), (2224, 9658), (3058, 7024), (3512, 6116), (4448, 4829)]