20293688

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{61871}}^1$

素因数の和:61918

約数の個数: 16

約数和(自身を含む): 38979360

約数和(自身を除く): 18685672

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 61871, 123742, 247484, 494968, 2536711, 5073422, 10146844, 20293688]

約数ペア:

[(1, 20293688), (2, 10146844), (4, 5073422), (8, 2536711), (41, 494968), (82, 247484), (164, 123742), (328, 61871)]