319821369

素因数分解:

$3^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{139721}}^1$

素因数の和:139840

約数の個数: 16

約数和(自身を含む): 491821440

約数和(自身を除く): 172000071

約数列:

[1, 3, 7, 21, 109, 327, 763, 2289, 139721, 419163, 978047, 2934141, 15229589, 45688767, 106607123, 319821369]

約数ペア:

[(1, 319821369), (3, 106607123), (7, 45688767), (21, 15229589), (109, 2934141), (327, 978047), (763, 419163), (2289, 139721)]