21492231775

素因数分解:

$5^2\times 7^2\times {\mathrm{41}}^1\times {\mathrm{427919}}^1$

素因数の和:427984

約数の個数: 36

約数和(自身を含む): 31757654880

約数和(自身を除く): 10265423105

約数列:

[1, 5, 7, 25, 35, 41, 49, 175, 205, 245, 287, 1025, 1225, 1435, 2009, 7175, 10045, 50225, 427919, 2139595, 2995433, 10697975, 14977165, 17544679, 20968031, 74885825, 87723395, 104840155, 122812753, 438616975, 524200775, 614063765, 859689271, 3070318825, 4298446355, 21492231775]

約数ペア:

[(1, 21492231775), (5, 4298446355), (7, 3070318825), (25, 859689271), (35, 614063765), (41, 524200775), (49, 438616975), (175, 122812753), (205, 104840155), (245, 87723395), (287, 74885825), (1025, 20968031), (1225, 17544679), (1435, 14977165), (2009, 10697975), (7175, 2995433), (10045, 2139595), (50225, 427919)]