20970268

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{1171}}^1$

素因数の和:1234

約数の個数: 36

約数和(自身を含む): 41463016

約数和(自身を除く): 20492748

約数列:

[1, 2, 4, 11, 22, 37, 44, 74, 121, 148, 242, 407, 484, 814, 1171, 1628, 2342, 4477, 4684, 8954, 12881, 17908, 25762, 43327, 51524, 86654, 141691, 173308, 283382, 476597, 566764, 953194, 1906388, 5242567, 10485134, 20970268]

約数ペア:

[(1, 20970268), (2, 10485134), (4, 5242567), (11, 1906388), (22, 953194), (37, 566764), (44, 476597), (74, 283382), (121, 173308), (148, 141691), (242, 86654), (407, 51524), (484, 43327), (814, 25762), (1171, 17908), (1628, 12881), (2342, 8954), (4477, 4684)]