20961850

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{271}}^1$

素因数の和:320

約数の個数: 96

約数和(自身を含む): 50996736

約数和(自身を除く): 30034886

約数列:

[1, 2, 5, 7, 10, 13, 14, 17, 25, 26, 34, 35, 50, 65, 70, 85, 91, 119, 130, 170, 175, 182, 221, 238, 271, 325, 350, 425, 442, 455, 542, 595, 650, 850, 910, 1105, 1190, 1355, 1547, 1897, 2210, 2275, 2710, 2975, 3094, 3523, 3794, 4550, 4607, 5525, 5950, 6775, 7046, 7735, 9214, 9485, 11050, 13550, 15470, 17615, 18970, 23035, 24661, 32249, 35230, 38675, 46070, 47425, 49322, 59891, 64498, 77350, 88075, 94850, 115175, 119782, 123305, 161245, 176150, 230350, 246610, 299455, 322490, 419237, 598910, 616525, 806225, 838474, 1233050, 1497275, 1612450, 2096185, 2994550, 4192370, 10480925, 20961850]

約数ペア:

[(1, 20961850), (2, 10480925), (5, 4192370), (7, 2994550), (10, 2096185), (13, 1612450), (14, 1497275), (17, 1233050), (25, 838474), (26, 806225), (34, 616525), (35, 598910), (50, 419237), (65, 322490), (70, 299455), (85, 246610), (91, 230350), (119, 176150), (130, 161245), (170, 123305), (175, 119782), (182, 115175), (221, 94850), (238, 88075), (271, 77350), (325, 64498), (350, 59891), (425, 49322), (442, 47425), (455, 46070), (542, 38675), (595, 35230), (650, 32249), (850, 24661), (910, 23035), (1105, 18970), (1190, 17615), (1355, 15470), (1547, 13550), (1897, 11050), (2210, 9485), (2275, 9214), (2710, 7735), (2975, 7046), (3094, 6775), (3523, 5950), (3794, 5525), (4550, 4607)]