19539728

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{93941}}^1$

素因数の和:93962

約数の個数: 20

約数和(自身を含む): 40770828

約数和(自身を除く): 21231100

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 93941, 187882, 375764, 751528, 1221233, 1503056, 2442466, 4884932, 9769864, 19539728]

約数ペア:

[(1, 19539728), (2, 9769864), (4, 4884932), (8, 2442466), (13, 1503056), (16, 1221233), (26, 751528), (52, 375764), (104, 187882), (208, 93941)]