18604885

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{149}}^1$

素因数の和:297

約数の個数: 32

約数和(自身を含む): 25855200

約数和(自身を除く): 7250315

約数列:

[1, 5, 13, 17, 65, 85, 113, 149, 221, 565, 745, 1105, 1469, 1921, 1937, 2533, 7345, 9605, 9685, 12665, 16837, 24973, 32929, 84185, 124865, 164645, 218881, 286229, 1094405, 1431145, 3720977, 18604885]

約数ペア:

[(1, 18604885), (5, 3720977), (13, 1431145), (17, 1094405), (65, 286229), (85, 218881), (113, 164645), (149, 124865), (221, 84185), (565, 32929), (745, 24973), (1105, 16837), (1469, 12665), (1921, 9685), (1937, 9605), (2533, 7345)]