21776144

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{104693}}^1$

素因数の和:104714

約数の個数: 20

約数和(自身を含む): 45437196

約数和(自身を除く): 23661052

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 104693, 209386, 418772, 837544, 1361009, 1675088, 2722018, 5444036, 10888072, 21776144]

約数ペア:

[(1, 21776144), (2, 10888072), (4, 5444036), (8, 2722018), (13, 1675088), (16, 1361009), (26, 837544), (52, 418772), (104, 209386), (208, 104693)]