21039964

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{1499}}^1$

素因数の和:1554

約数の個数: 36

約数和(自身を含む): 41895000

約数和(自身を除く): 20855036

約数列:

[1, 2, 4, 11, 22, 29, 44, 58, 116, 121, 242, 319, 484, 638, 1276, 1499, 2998, 3509, 5996, 7018, 14036, 16489, 32978, 43471, 65956, 86942, 173884, 181379, 362758, 478181, 725516, 956362, 1912724, 5259991, 10519982, 21039964]

約数ペア:

[(1, 21039964), (2, 10519982), (4, 5259991), (11, 1912724), (22, 956362), (29, 725516), (44, 478181), (58, 362758), (116, 181379), (121, 173884), (242, 86942), (319, 65956), (484, 43471), (638, 32978), (1276, 16489), (1499, 14036), (2998, 7018), (3509, 5996)]