21330400

素因数分解:

$2^5\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{293}}^1$

素因数の和:333

約数の個数: 144

約数和(自身を含む): 64308384

約数和(自身を除く): 42977984

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 25, 26, 28, 32, 35, 40, 50, 52, 56, 65, 70, 80, 91, 100, 104, 112, 130, 140, 160, 175, 182, 200, 208, 224, 260, 280, 293, 325, 350, 364, 400, 416, 455, 520, 560, 586, 650, 700, 728, 800, 910, 1040, 1120, 1172, 1300, 1400, 1456, 1465, 1820, 2051, 2080, 2275, 2344, 2600, 2800, 2912, 2930, 3640, 3809, 4102, 4550, 4688, 5200, 5600, 5860, 7280, 7325, 7618, 8204, 9100, 9376, 10255, 10400, 11720, 14560, 14650, 15236, 16408, 18200, 19045, 20510, 23440, 26663, 29300, 30472, 32816, 36400, 38090, 41020, 46880, 51275, 53326, 58600, 60944, 65632, 72800, 76180, 82040, 95225, 102550, 106652, 117200, 121888, 133315, 152360, 164080, 190450, 205100, 213304, 234400, 266630, 304720, 328160, 380900, 410200, 426608, 533260, 609440, 666575, 761800, 820400, 853216, 1066520, 1333150, 1523600, 1640800, 2133040, 2666300, 3047200, 4266080, 5332600, 10665200, 21330400]

約数ペア:

[(1, 21330400), (2, 10665200), (4, 5332600), (5, 4266080), (7, 3047200), (8, 2666300), (10, 2133040), (13, 1640800), (14, 1523600), (16, 1333150), (20, 1066520), (25, 853216), (26, 820400), (28, 761800), (32, 666575), (35, 609440), (40, 533260), (50, 426608), (52, 410200), (56, 380900), (65, 328160), (70, 304720), (80, 266630), (91, 234400), (100, 213304), (104, 205100), (112, 190450), (130, 164080), (140, 152360), (160, 133315), (175, 121888), (182, 117200), (200, 106652), (208, 102550), (224, 95225), (260, 82040), (280, 76180), (293, 72800), (325, 65632), (350, 60944), (364, 58600), (400, 53326), (416, 51275), (455, 46880), (520, 41020), (560, 38090), (586, 36400), (650, 32816), (700, 30472), (728, 29300), (800, 26663), (910, 23440), (1040, 20510), (1120, 19045), (1172, 18200), (1300, 16408), (1400, 15236), (1456, 14650), (1465, 14560), (1820, 11720), (2051, 10400), (2080, 10255), (2275, 9376), (2344, 9100), (2600, 8204), (2800, 7618), (2912, 7325), (2930, 7280), (3640, 5860), (3809, 5600), (4102, 5200), (4550, 4688)]