21823568

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{439}}^1$

素因数の和:699

約数の個数: 40

約数和(自身を含む): 45830400

約数和(自身を除く): 24006832

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 239, 439, 478, 878, 956, 1756, 1912, 3107, 3512, 3824, 5707, 6214, 7024, 11414, 12428, 22828, 24856, 45656, 49712, 91312, 104921, 209842, 419684, 839368, 1363973, 1678736, 2727946, 5455892, 10911784, 21823568]

約数ペア:

[(1, 21823568), (2, 10911784), (4, 5455892), (8, 2727946), (13, 1678736), (16, 1363973), (26, 839368), (52, 419684), (104, 209842), (208, 104921), (239, 91312), (439, 49712), (478, 45656), (878, 24856), (956, 22828), (1756, 12428), (1912, 11414), (3107, 7024), (3512, 6214), (3824, 5707)]