21065590

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{3307}}^1$

素因数の和:3341

約数の個数: 48

約数和(自身を含む): 47516112

約数和(自身を除く): 26450522

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 49, 65, 70, 91, 98, 130, 182, 245, 455, 490, 637, 910, 1274, 3185, 3307, 6370, 6614, 16535, 23149, 33070, 42991, 46298, 85982, 115745, 162043, 214955, 231490, 300937, 324086, 429910, 601874, 810215, 1504685, 1620430, 2106559, 3009370, 4213118, 10532795, 21065590]

約数ペア:

[(1, 21065590), (2, 10532795), (5, 4213118), (7, 3009370), (10, 2106559), (13, 1620430), (14, 1504685), (26, 810215), (35, 601874), (49, 429910), (65, 324086), (70, 300937), (91, 231490), (98, 214955), (130, 162043), (182, 115745), (245, 85982), (455, 46298), (490, 42991), (637, 33070), (910, 23149), (1274, 16535), (3185, 6614), (3307, 6370)]