20138768

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{96821}}^1$

素因数の和:96842

約数の個数: 20

約数和(自身を含む): 42020748

約数和(自身を除く): 21881980

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 96821, 193642, 387284, 774568, 1258673, 1549136, 2517346, 5034692, 10069384, 20138768]

約数ペア:

[(1, 20138768), (2, 10069384), (4, 5034692), (8, 2517346), (13, 1549136), (16, 1258673), (26, 774568), (52, 387284), (104, 193642), (208, 96821)]