20973816

素因数分解:

$2^3\times 3^5\times {\mathrm{10789}}^1$

素因数の和:10810

約数の個数: 48

約数和(自身を含む): 58913400

約数和(自身を除く): 37939584

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 243, 324, 486, 648, 972, 1944, 10789, 21578, 32367, 43156, 64734, 86312, 97101, 129468, 194202, 258936, 291303, 388404, 582606, 776808, 873909, 1165212, 1747818, 2330424, 2621727, 3495636, 5243454, 6991272, 10486908, 20973816]

約数ペア:

[(1, 20973816), (2, 10486908), (3, 6991272), (4, 5243454), (6, 3495636), (8, 2621727), (9, 2330424), (12, 1747818), (18, 1165212), (24, 873909), (27, 776808), (36, 582606), (54, 388404), (72, 291303), (81, 258936), (108, 194202), (162, 129468), (216, 97101), (243, 86312), (324, 64734), (486, 43156), (648, 32367), (972, 21578), (1944, 10789)]