21027160

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{6827}}^1$

素因数の和:6856

約数の個数: 64

約数和(自身を含む): 58993920

約数和(自身を除く): 37966760

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 140, 154, 220, 280, 308, 385, 440, 616, 770, 1540, 3080, 6827, 13654, 27308, 34135, 47789, 54616, 68270, 75097, 95578, 136540, 150194, 191156, 238945, 273080, 300388, 375485, 382312, 477890, 525679, 600776, 750970, 955780, 1051358, 1501940, 1911560, 2102716, 2628395, 3003880, 4205432, 5256790, 10513580, 21027160]

約数ペア:

[(1, 21027160), (2, 10513580), (4, 5256790), (5, 4205432), (7, 3003880), (8, 2628395), (10, 2102716), (11, 1911560), (14, 1501940), (20, 1051358), (22, 955780), (28, 750970), (35, 600776), (40, 525679), (44, 477890), (55, 382312), (56, 375485), (70, 300388), (77, 273080), (88, 238945), (110, 191156), (140, 150194), (154, 136540), (220, 95578), (280, 75097), (308, 68270), (385, 54616), (440, 47789), (616, 34135), (770, 27308), (1540, 13654), (3080, 6827)]