20699888

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{337}}^1\times {\mathrm{349}}^1$

素因数の和:705

約数の個数: 40

約数和(自身を含む): 44007600

約数和(自身を除く): 23307712

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 337, 349, 674, 698, 1348, 1396, 2696, 2792, 3707, 3839, 5392, 5584, 7414, 7678, 14828, 15356, 29656, 30712, 59312, 61424, 117613, 235226, 470452, 940904, 1293743, 1881808, 2587486, 5174972, 10349944, 20699888]

約数ペア:

[(1, 20699888), (2, 10349944), (4, 5174972), (8, 2587486), (11, 1881808), (16, 1293743), (22, 940904), (44, 470452), (88, 235226), (176, 117613), (337, 61424), (349, 59312), (674, 30712), (698, 29656), (1348, 15356), (1396, 14828), (2696, 7678), (2792, 7414), (3707, 5584), (3839, 5392)]