19674171

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{311}}^1$

素因数の和:405

約数の個数: 40

約数和(自身を含む): 32617728

約数和(自身を除く): 12943557

約数列:

[1, 3, 9, 11, 27, 33, 71, 81, 99, 213, 297, 311, 639, 781, 891, 933, 1917, 2343, 2799, 3421, 5751, 7029, 8397, 10263, 21087, 22081, 25191, 30789, 63261, 66243, 92367, 198729, 242891, 277101, 596187, 728673, 1788561, 2186019, 6558057, 19674171]

約数ペア:

[(1, 19674171), (3, 6558057), (9, 2186019), (11, 1788561), (27, 728673), (33, 596187), (71, 277101), (81, 242891), (99, 198729), (213, 92367), (297, 66243), (311, 63261), (639, 30789), (781, 25191), (891, 22081), (933, 21087), (1917, 10263), (2343, 8397), (2799, 7029), (3421, 5751)]