42780483

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{12157}}^1$

素因数の和:12203

約数の個数: 24

約数和(自身を含む): 68279328

約数和(自身を除く): 25498845

約数列:

[1, 3, 9, 17, 23, 51, 69, 153, 207, 391, 1173, 3519, 12157, 36471, 109413, 206669, 279611, 620007, 838833, 1860021, 2516499, 4753387, 14260161, 42780483]

約数ペア:

[(1, 42780483), (3, 14260161), (9, 4753387), (17, 2516499), (23, 1860021), (51, 838833), (69, 620007), (153, 279611), (207, 206669), (391, 109413), (1173, 36471), (3519, 12157)]