21367580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{82183}}^1$

素因数の和:82205

約数の個数: 24

約数和(自身を含む): 48324192

約数和(自身を除く): 26956612

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 82183, 164366, 328732, 410915, 821830, 1068379, 1643660, 2136758, 4273516, 5341895, 10683790, 21367580]

約数ペア:

[(1, 21367580), (2, 10683790), (4, 5341895), (5, 4273516), (10, 2136758), (13, 1643660), (20, 1068379), (26, 821830), (52, 410915), (65, 328732), (130, 164366), (260, 82183)]