21316468

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{1669}}^1$

素因数の和:1807

約数の個数: 24

約数和(自身を含む): 38904320

約数和(自身を除く): 17587852

約数列:

[1, 2, 4, 31, 62, 103, 124, 206, 412, 1669, 3193, 3338, 6386, 6676, 12772, 51739, 103478, 171907, 206956, 343814, 687628, 5329117, 10658234, 21316468]

約数ペア:

[(1, 21316468), (2, 10658234), (4, 5329117), (31, 687628), (62, 343814), (103, 206956), (124, 171907), (206, 103478), (412, 51739), (1669, 12772), (3193, 6676), (3338, 6386)]