18261859

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1993}}^1$

素因数の和:2035

約数の個数: 24

約数和(自身を含む): 24550128

約数和(自身を除く): 6288269

約数列:

[1, 7, 11, 17, 49, 77, 119, 187, 539, 833, 1309, 1993, 9163, 13951, 21923, 33881, 97657, 153461, 237167, 372691, 1074227, 1660169, 2608837, 18261859]

約数ペア:

[(1, 18261859), (7, 2608837), (11, 1660169), (17, 1074227), (49, 372691), (77, 237167), (119, 153461), (187, 97657), (539, 33881), (833, 21923), (1309, 13951), (1993, 9163)]