21975800

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1427}}^1$

素因数の和:1461

約数の個数: 96

約数和(自身を含む): 63745920

約数和(自身を除く): 41770120

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 25, 28, 35, 40, 44, 50, 55, 56, 70, 77, 88, 100, 110, 140, 154, 175, 200, 220, 275, 280, 308, 350, 385, 440, 550, 616, 700, 770, 1100, 1400, 1427, 1540, 1925, 2200, 2854, 3080, 3850, 5708, 7135, 7700, 9989, 11416, 14270, 15400, 15697, 19978, 28540, 31394, 35675, 39956, 49945, 57080, 62788, 71350, 78485, 79912, 99890, 109879, 125576, 142700, 156970, 199780, 219758, 249725, 285400, 313940, 392425, 399560, 439516, 499450, 549395, 627880, 784850, 879032, 998900, 1098790, 1569700, 1997800, 2197580, 2746975, 3139400, 4395160, 5493950, 10987900, 21975800]

約数ペア:

[(1, 21975800), (2, 10987900), (4, 5493950), (5, 4395160), (7, 3139400), (8, 2746975), (10, 2197580), (11, 1997800), (14, 1569700), (20, 1098790), (22, 998900), (25, 879032), (28, 784850), (35, 627880), (40, 549395), (44, 499450), (50, 439516), (55, 399560), (56, 392425), (70, 313940), (77, 285400), (88, 249725), (100, 219758), (110, 199780), (140, 156970), (154, 142700), (175, 125576), (200, 109879), (220, 99890), (275, 79912), (280, 78485), (308, 71350), (350, 62788), (385, 57080), (440, 49945), (550, 39956), (616, 35675), (700, 31394), (770, 28540), (1100, 19978), (1400, 15697), (1427, 15400), (1540, 14270), (1925, 11416), (2200, 9989), (2854, 7700), (3080, 7135), (3850, 5708)]