19972211

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{6529}}^1$

素因数の和:6578

約数の個数: 16

約数和(自身を含む): 25075200

約数和(自身を除く): 5102989

約数列:

[1, 7, 19, 23, 133, 161, 437, 3059, 6529, 45703, 124051, 150167, 868357, 1051169, 2853173, 19972211]

約数ペア:

[(1, 19972211), (7, 2853173), (19, 1051169), (23, 868357), (133, 150167), (161, 124051), (437, 45703), (3059, 6529)]