21033740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^2\times {\mathrm{127}}^1$

素因数の和:176

約数の個数: 108

約数和(自身を含む): 56077056

約数和(自身を除く): 35043316

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 127, 130, 140, 169, 182, 196, 245, 254, 260, 338, 364, 455, 490, 508, 635, 637, 676, 845, 889, 910, 980, 1183, 1270, 1274, 1651, 1690, 1778, 1820, 2366, 2540, 2548, 3185, 3302, 3380, 3556, 4445, 4732, 5915, 6223, 6370, 6604, 8255, 8281, 8890, 11557, 11830, 12446, 12740, 16510, 16562, 17780, 21463, 23114, 23660, 24892, 31115, 33020, 33124, 41405, 42926, 46228, 57785, 62230, 80899, 82810, 85852, 107315, 115570, 124460, 150241, 161798, 165620, 214630, 231140, 300482, 323596, 404495, 429260, 600964, 751205, 808990, 1051687, 1502410, 1617980, 2103374, 3004820, 4206748, 5258435, 10516870, 21033740]

約数ペア:

[(1, 21033740), (2, 10516870), (4, 5258435), (5, 4206748), (7, 3004820), (10, 2103374), (13, 1617980), (14, 1502410), (20, 1051687), (26, 808990), (28, 751205), (35, 600964), (49, 429260), (52, 404495), (65, 323596), (70, 300482), (91, 231140), (98, 214630), (127, 165620), (130, 161798), (140, 150241), (169, 124460), (182, 115570), (196, 107315), (245, 85852), (254, 82810), (260, 80899), (338, 62230), (364, 57785), (455, 46228), (490, 42926), (508, 41405), (635, 33124), (637, 33020), (676, 31115), (845, 24892), (889, 23660), (910, 23114), (980, 21463), (1183, 17780), (1270, 16562), (1274, 16510), (1651, 12740), (1690, 12446), (1778, 11830), (1820, 11557), (2366, 8890), (2540, 8281), (2548, 8255), (3185, 6604), (3302, 6370), (3380, 6223), (3556, 5915), (4445, 4732)]