18915688

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{19541}}^1$

素因数の和:19569

約数の個数: 24

約数和(自身を含む): 38986290

約数和(自身を除く): 20070602

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 121, 242, 484, 968, 19541, 39082, 78164, 156328, 214951, 429902, 859804, 1719608, 2364461, 4728922, 9457844, 18915688]

約数ペア:

[(1, 18915688), (2, 9457844), (4, 4728922), (8, 2364461), (11, 1719608), (22, 859804), (44, 429902), (88, 214951), (121, 156328), (242, 78164), (484, 39082), (968, 19541)]