21220492

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{9007}}^1$

素因数の和:9061

約数の個数: 24

約数和(自身を含む): 40355840

約数和(自身を除く): 19135348

約数列:

[1, 2, 4, 19, 31, 38, 62, 76, 124, 589, 1178, 2356, 9007, 18014, 36028, 171133, 279217, 342266, 558434, 684532, 1116868, 5305123, 10610246, 21220492]

約数ペア:

[(1, 21220492), (2, 10610246), (4, 5305123), (19, 1116868), (31, 684532), (38, 558434), (62, 342266), (76, 279217), (124, 171133), (589, 36028), (1178, 18014), (2356, 9007)]