891518551

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{21013}}^1$

素因数の和:21079

約数の個数: 32

約数和(自身を含む): 1210406400

約数和(自身を除く): 318887849

約数列:

[1, 7, 11, 19, 29, 77, 133, 203, 209, 319, 551, 1463, 2233, 3857, 6061, 21013, 42427, 147091, 231143, 399247, 609377, 1618001, 2794729, 4265639, 4391717, 6703147, 11578163, 30742019, 46922029, 81047141, 127359793, 891518551]

約数ペア:

[(1, 891518551), (7, 127359793), (11, 81047141), (19, 46922029), (29, 30742019), (77, 11578163), (133, 6703147), (203, 4391717), (209, 4265639), (319, 2794729), (551, 1618001), (1463, 609377), (2233, 399247), (3857, 231143), (6061, 147091), (21013, 42427)]