19984979

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{8839}}^1$

素因数の和:8882

約数の個数: 16

約数和(自身を含む): 25459200

約数和(自身を除く): 5474221

約数列:

[1, 7, 17, 19, 119, 133, 323, 2261, 8839, 61873, 150263, 167941, 1051841, 1175587, 2854997, 19984979]

約数ペア:

[(1, 19984979), (7, 2854997), (17, 1175587), (19, 1051841), (119, 167941), (133, 150263), (323, 61873), (2261, 8839)]