20278804

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{55711}}^1$

素因数の和:55735

約数の個数: 24

約数和(自身を含む): 43678208

約数和(自身を除く): 23399404

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 364, 55711, 111422, 222844, 389977, 724243, 779954, 1448486, 1559908, 2896972, 5069701, 10139402, 20278804]

約数ペア:

[(1, 20278804), (2, 10139402), (4, 5069701), (7, 2896972), (13, 1559908), (14, 1448486), (26, 779954), (28, 724243), (52, 389977), (91, 222844), (182, 111422), (364, 55711)]