21702772

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{547}}^1$

素因数の和:680

約数の個数: 48

約数和(自身を含む): 47259520

約数和(自身を除く): 25556748

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 109, 182, 218, 364, 436, 547, 763, 1094, 1417, 1526, 2188, 2834, 3052, 3829, 5668, 7111, 7658, 9919, 14222, 15316, 19838, 28444, 39676, 49777, 59623, 99554, 119246, 199108, 238492, 417361, 775099, 834722, 1550198, 1669444, 3100396, 5425693, 10851386, 21702772]

約数ペア:

[(1, 21702772), (2, 10851386), (4, 5425693), (7, 3100396), (13, 1669444), (14, 1550198), (26, 834722), (28, 775099), (52, 417361), (91, 238492), (109, 199108), (182, 119246), (218, 99554), (364, 59623), (436, 49777), (547, 39676), (763, 28444), (1094, 19838), (1417, 15316), (1526, 14222), (2188, 9919), (2834, 7658), (3052, 7111), (3829, 5668)]