18505732

素因数分解:

$2^2\times 7^2\times {\mathrm{263}}^1\times {\mathrm{359}}^1$

素因数の和:640

約数の個数: 36

約数和(自身を含む): 37920960

約数和(自身を除く): 19415228

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 263, 359, 526, 718, 1052, 1436, 1841, 2513, 3682, 5026, 7364, 10052, 12887, 17591, 25774, 35182, 51548, 70364, 94417, 188834, 377668, 660919, 1321838, 2643676, 4626433, 9252866, 18505732]

約数ペア:

[(1, 18505732), (2, 9252866), (4, 4626433), (7, 2643676), (14, 1321838), (28, 660919), (49, 377668), (98, 188834), (196, 94417), (263, 70364), (359, 51548), (526, 35182), (718, 25774), (1052, 17591), (1436, 12887), (1841, 10052), (2513, 7364), (3682, 5026)]