1821988072

素因数分解:

$2^3\times {\mathrm{569}}^1\times {\mathrm{400261}}^1$

素因数の和:400836

約数の個数: 16

約数和(自身を含む): 3422240100

約数和(自身を除く): 1600252028

約数列:

[1, 2, 4, 8, 569, 1138, 2276, 4552, 400261, 800522, 1601044, 3202088, 227748509, 455497018, 910994036, 1821988072]

約数ペア:

[(1, 1821988072), (2, 910994036), (4, 455497018), (8, 227748509), (569, 3202088), (1138, 1601044), (2276, 800522), (4552, 400261)]