78738009

素因数分解:

$3^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{21673}}^1$

素因数の和:21856

約数の個数: 16

約数和(自身を含む): 120680832

約数和(自身を除く): 41942823

約数列:

[1, 3, 7, 21, 173, 519, 1211, 3633, 21673, 65019, 151711, 455133, 3749429, 11248287, 26246003, 78738009]

約数ペア:

[(1, 78738009), (3, 26246003), (7, 11248287), (21, 3749429), (173, 455133), (519, 151711), (1211, 65019), (3633, 21673)]