21999711

素因数分解:

$3^1\times {\mathrm{61}}^1\times {\mathrm{239}}^1\times {\mathrm{503}}^1$

素因数の和:806

約数の個数: 16

約数和(自身を含む): 29998080

約数和(自身を除く): 7998369

約数列:

[1, 3, 61, 183, 239, 503, 717, 1509, 14579, 30683, 43737, 92049, 120217, 360651, 7333237, 21999711]

約数ペア:

[(1, 21999711), (3, 7333237), (61, 360651), (183, 120217), (239, 92049), (503, 43737), (717, 30683), (1509, 14579)]