81850629

素因数分解:

$3^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{563}}^1$

素因数の和:646

約数の個数: 48

約数和(自身を含む): 135793152

約数和(自身を除く): 53942523

約数列:

[1, 3, 7, 21, 23, 43, 49, 69, 129, 147, 161, 301, 483, 563, 903, 989, 1127, 1689, 2107, 2967, 3381, 3941, 6321, 6923, 11823, 12949, 20769, 24209, 27587, 38847, 48461, 72627, 82761, 90643, 145383, 169463, 271929, 508389, 556807, 634501, 1186241, 1670421, 1903503, 3558723, 3897649, 11692947, 27283543, 81850629]

約数ペア:

[(1, 81850629), (3, 27283543), (7, 11692947), (21, 3897649), (23, 3558723), (43, 1903503), (49, 1670421), (69, 1186241), (129, 634501), (147, 556807), (161, 508389), (301, 271929), (483, 169463), (563, 145383), (903, 90643), (989, 82761), (1127, 72627), (1689, 48461), (2107, 38847), (2967, 27587), (3381, 24209), (3941, 20769), (6321, 12949), (6923, 11823)]