19897857

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{10891}}^1$

素因数の和:10933

約数の個数: 24

約数和(自身を含む): 33983040

約数和(自身を除く): 14085183

約数列:

[1, 3, 7, 9, 21, 29, 63, 87, 203, 261, 609, 1827, 10891, 32673, 76237, 98019, 228711, 315839, 686133, 947517, 2210873, 2842551, 6632619, 19897857]

約数ペア:

[(1, 19897857), (3, 6632619), (7, 2842551), (9, 2210873), (21, 947517), (29, 686133), (63, 315839), (87, 228711), (203, 98019), (261, 76237), (609, 32673), (1827, 10891)]