21822640

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{293}}^1$

素因数の和:339

約数の個数: 120

約数和(自身を含む): 62339760

約数和(自身を除く): 40517120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 49, 56, 70, 76, 80, 95, 98, 112, 133, 140, 152, 190, 196, 245, 266, 280, 293, 304, 380, 392, 490, 532, 560, 586, 665, 760, 784, 931, 980, 1064, 1172, 1330, 1465, 1520, 1862, 1960, 2051, 2128, 2344, 2660, 2930, 3724, 3920, 4102, 4655, 4688, 5320, 5567, 5860, 7448, 8204, 9310, 10255, 10640, 11134, 11720, 14357, 14896, 16408, 18620, 20510, 22268, 23440, 27835, 28714, 32816, 37240, 38969, 41020, 44536, 55670, 57428, 71785, 74480, 77938, 82040, 89072, 111340, 114856, 143570, 155876, 164080, 194845, 222680, 229712, 272783, 287140, 311752, 389690, 445360, 545566, 574280, 623504, 779380, 1091132, 1148560, 1363915, 1558760, 2182264, 2727830, 3117520, 4364528, 5455660, 10911320, 21822640]

約数ペア:

[(1, 21822640), (2, 10911320), (4, 5455660), (5, 4364528), (7, 3117520), (8, 2727830), (10, 2182264), (14, 1558760), (16, 1363915), (19, 1148560), (20, 1091132), (28, 779380), (35, 623504), (38, 574280), (40, 545566), (49, 445360), (56, 389690), (70, 311752), (76, 287140), (80, 272783), (95, 229712), (98, 222680), (112, 194845), (133, 164080), (140, 155876), (152, 143570), (190, 114856), (196, 111340), (245, 89072), (266, 82040), (280, 77938), (293, 74480), (304, 71785), (380, 57428), (392, 55670), (490, 44536), (532, 41020), (560, 38969), (586, 37240), (665, 32816), (760, 28714), (784, 27835), (931, 23440), (980, 22268), (1064, 20510), (1172, 18620), (1330, 16408), (1465, 14896), (1520, 14357), (1862, 11720), (1960, 11134), (2051, 10640), (2128, 10255), (2344, 9310), (2660, 8204), (2930, 7448), (3724, 5860), (3920, 5567), (4102, 5320), (4655, 4688)]