21462856

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{337}}^1\times {\mathrm{419}}^1$

素因数の和:781

約数の個数: 32

約数和(自身を含む): 42588000

約数和(自身を除く): 21125144

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 337, 419, 674, 838, 1348, 1676, 2696, 3352, 6403, 7961, 12806, 15922, 25612, 31844, 51224, 63688, 141203, 282406, 564812, 1129624, 2682857, 5365714, 10731428, 21462856]

約数ペア:

[(1, 21462856), (2, 10731428), (4, 5365714), (8, 2682857), (19, 1129624), (38, 564812), (76, 282406), (152, 141203), (337, 63688), (419, 51224), (674, 31844), (838, 25612), (1348, 15922), (1676, 12806), (2696, 7961), (3352, 6403)]