19840959

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{4001}}^1$

素因数の和:4055

約数の個数: 24

約数和(自身を含む): 31215600

約数和(自身を除く): 11374641

約数列:

[1, 3, 9, 19, 29, 57, 87, 171, 261, 551, 1653, 4001, 4959, 12003, 36009, 76019, 116029, 228057, 348087, 684171, 1044261, 2204551, 6613653, 19840959]

約数ペア:

[(1, 19840959), (3, 6613653), (9, 2204551), (19, 1044261), (29, 684171), (57, 348087), (87, 228057), (171, 116029), (261, 76019), (551, 36009), (1653, 12003), (4001, 4959)]