20807744

素因数分解:

$2^6\times {\mathrm{139}}^1\times {\mathrm{2339}}^1$

素因数の和:2490

約数の個数: 28

約数和(自身を含む): 41605200

約数和(自身を除く): 20797456

約数列:

[1, 2, 4, 8, 16, 32, 64, 139, 278, 556, 1112, 2224, 2339, 4448, 4678, 8896, 9356, 18712, 37424, 74848, 149696, 325121, 650242, 1300484, 2600968, 5201936, 10403872, 20807744]

約数ペア:

[(1, 20807744), (2, 10403872), (4, 5201936), (8, 2600968), (16, 1300484), (32, 650242), (64, 325121), (139, 149696), (278, 74848), (556, 37424), (1112, 18712), (2224, 9356), (2339, 8896), (4448, 4678)]