21010839

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{1439}}^1$

素因数の和:1630

約数の個数: 16

約数和(自身を含む): 29122560

約数和(自身を除く): 8111721

約数列:

[1, 3, 31, 93, 157, 471, 1439, 4317, 4867, 14601, 44609, 133827, 225923, 677769, 7003613, 21010839]

約数ペア:

[(1, 21010839), (3, 7003613), (31, 677769), (93, 225923), (157, 133827), (471, 44609), (1439, 14601), (4317, 4867)]