21428936

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{1217}}^1$

素因数の和:1325

約数の個数: 32

約数和(自身を含む): 42094080

約数和(自身を除く): 20665144

約数列:

[1, 2, 4, 8, 31, 62, 71, 124, 142, 248, 284, 568, 1217, 2201, 2434, 4402, 4868, 8804, 9736, 17608, 37727, 75454, 86407, 150908, 172814, 301816, 345628, 691256, 2678617, 5357234, 10714468, 21428936]

約数ペア:

[(1, 21428936), (2, 10714468), (4, 5357234), (8, 2678617), (31, 691256), (62, 345628), (71, 301816), (124, 172814), (142, 150908), (248, 86407), (284, 75454), (568, 37727), (1217, 17608), (2201, 9736), (2434, 8804), (4402, 4868)]