18805552

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{263}}^1$

素因数の和:421

約数の個数: 40

約数和(自身を含む): 37810080

約数和(自身を除く): 19004528

約数列:

[1, 2, 4, 8, 16, 41, 82, 109, 164, 218, 263, 328, 436, 526, 656, 872, 1052, 1744, 2104, 4208, 4469, 8938, 10783, 17876, 21566, 28667, 35752, 43132, 57334, 71504, 86264, 114668, 172528, 229336, 458672, 1175347, 2350694, 4701388, 9402776, 18805552]

約数ペア:

[(1, 18805552), (2, 9402776), (4, 4701388), (8, 2350694), (16, 1175347), (41, 458672), (82, 229336), (109, 172528), (164, 114668), (218, 86264), (263, 71504), (328, 57334), (436, 43132), (526, 35752), (656, 28667), (872, 21566), (1052, 17876), (1744, 10783), (2104, 8938), (4208, 4469)]