20111608

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{449}}^1\times {\mathrm{509}}^1$

素因数の和:975

約数の個数: 32

約数和(自身を含む): 41310000

約数和(自身を除く): 21198392

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 449, 509, 898, 1018, 1796, 2036, 3592, 4072, 4939, 5599, 9878, 11198, 19756, 22396, 39512, 44792, 228541, 457082, 914164, 1828328, 2513951, 5027902, 10055804, 20111608]

約数ペア:

[(1, 20111608), (2, 10055804), (4, 5027902), (8, 2513951), (11, 1828328), (22, 914164), (44, 457082), (88, 228541), (449, 44792), (509, 39512), (898, 22396), (1018, 19756), (1796, 11198), (2036, 9878), (3592, 5599), (4072, 4939)]