21388728

素因数分解:

$2^3\times 3^1\times {\mathrm{269}}^1\times {\mathrm{3313}}^1$

素因数の和:3591

約数の個数: 32

約数和(自身を含む): 53686800

約数和(自身を除く): 32298072

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 269, 538, 807, 1076, 1614, 2152, 3228, 3313, 6456, 6626, 9939, 13252, 19878, 26504, 39756, 79512, 891197, 1782394, 2673591, 3564788, 5347182, 7129576, 10694364, 21388728]

約数ペア:

[(1, 21388728), (2, 10694364), (3, 7129576), (4, 5347182), (6, 3564788), (8, 2673591), (12, 1782394), (24, 891197), (269, 79512), (538, 39756), (807, 26504), (1076, 19878), (1614, 13252), (2152, 9939), (3228, 6626), (3313, 6456)]