18156908

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{167}}^1\times {\mathrm{353}}^1$

素因数の和:542

約数の個数: 48

約数和(自身を含む): 39965184

約数和(自身を除く): 21808276

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 167, 308, 334, 353, 668, 706, 1169, 1412, 1837, 2338, 2471, 3674, 3883, 4676, 4942, 7348, 7766, 9884, 12859, 15532, 25718, 27181, 51436, 54362, 58951, 108724, 117902, 235804, 412657, 648461, 825314, 1296922, 1650628, 2593844, 4539227, 9078454, 18156908]

約数ペア:

[(1, 18156908), (2, 9078454), (4, 4539227), (7, 2593844), (11, 1650628), (14, 1296922), (22, 825314), (28, 648461), (44, 412657), (77, 235804), (154, 117902), (167, 108724), (308, 58951), (334, 54362), (353, 51436), (668, 27181), (706, 25718), (1169, 15532), (1412, 12859), (1837, 9884), (2338, 7766), (2471, 7348), (3674, 4942), (3883, 4676)]