20807774

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{577}}^1$

素因数の和:684

約数の個数: 32

約数和(自身を含む): 35928480

約数和(自身を除く): 15120706

約数列:

[1, 2, 13, 19, 26, 38, 73, 146, 247, 494, 577, 949, 1154, 1387, 1898, 2774, 7501, 10963, 15002, 18031, 21926, 36062, 42121, 84242, 142519, 285038, 547573, 800299, 1095146, 1600598, 10403887, 20807774]

約数ペア:

[(1, 20807774), (2, 10403887), (13, 1600598), (19, 1095146), (26, 800299), (38, 547573), (73, 285038), (146, 142519), (247, 84242), (494, 42121), (577, 36062), (949, 21926), (1154, 18031), (1387, 15002), (1898, 10963), (2774, 7501)]