18428221

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{6733}}^1$

素因数の和:6780

約数の個数: 16

約数和(自身を含む): 23272704

約数和(自身を除く): 4844483

約数列:

[1, 7, 17, 23, 119, 161, 391, 2737, 6733, 47131, 114461, 154859, 801227, 1084013, 2632603, 18428221]

約数ペア:

[(1, 18428221), (7, 2632603), (17, 1084013), (23, 801227), (119, 154859), (161, 114461), (391, 47131), (2737, 6733)]