17999961

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{449}}^1$

素因数の和:565

約数の個数: 32

約数和(自身を含む): 29030400

約数和(自身を除く): 11030439

約数列:

[1, 3, 7, 21, 23, 69, 83, 161, 249, 449, 483, 581, 1347, 1743, 1909, 3143, 5727, 9429, 10327, 13363, 30981, 37267, 40089, 72289, 111801, 216867, 260869, 782607, 857141, 2571423, 5999987, 17999961]

約数ペア:

[(1, 17999961), (3, 5999987), (7, 2571423), (21, 857141), (23, 782607), (69, 260869), (83, 216867), (161, 111801), (249, 72289), (449, 40089), (483, 37267), (581, 30981), (1347, 13363), (1743, 10327), (1909, 9429), (3143, 5727)]