21381754

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1\times {\mathrm{1733}}^1$

素因数の和:1965

約数の個数: 16

約数和(自身を含む): 33292800

約数和(自身を除く): 11911046

約数列:

[1, 2, 31, 62, 199, 398, 1733, 3466, 6169, 12338, 53723, 107446, 344867, 689734, 10690877, 21381754]

約数ペア:

[(1, 21381754), (2, 10690877), (31, 689734), (62, 344867), (199, 107446), (398, 53723), (1733, 12338), (3466, 6169)]