18128475

素因数分解:

$3^3\times 5^2\times {\mathrm{107}}^1\times {\mathrm{251}}^1$

素因数の和:377

約数の個数: 48

約数和(自身を含む): 33747840

約数和(自身を除く): 15619365

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 107, 135, 225, 251, 321, 535, 675, 753, 963, 1255, 1605, 2259, 2675, 2889, 3765, 4815, 6275, 6777, 8025, 11295, 14445, 18825, 24075, 26857, 33885, 56475, 72225, 80571, 134285, 169425, 241713, 402855, 671425, 725139, 1208565, 2014275, 3625695, 6042825, 18128475]

約数ペア:

[(1, 18128475), (3, 6042825), (5, 3625695), (9, 2014275), (15, 1208565), (25, 725139), (27, 671425), (45, 402855), (75, 241713), (107, 169425), (135, 134285), (225, 80571), (251, 72225), (321, 56475), (535, 33885), (675, 26857), (753, 24075), (963, 18825), (1255, 14445), (1605, 11295), (2259, 8025), (2675, 6777), (2889, 6275), (3765, 4815)]