21715798

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{641}}^1\times {\mathrm{1303}}^1$

素因数の和:1959

約数の個数: 16

約数和(自身を含む): 35161056

約数和(自身を除く): 13445258

約数列:

[1, 2, 13, 26, 641, 1282, 1303, 2606, 8333, 16666, 16939, 33878, 835223, 1670446, 10857899, 21715798]

約数ペア:

[(1, 21715798), (2, 10857899), (13, 1670446), (26, 835223), (641, 33878), (1282, 16939), (1303, 16666), (2606, 8333)]